All Episodes
James O'Brien's Mystery Hour — 608 episodes
Do crabs have a dominant claw?
Are my polished nails suffocating?
Do birds herd sheep?
Ducks in the sea?
Can mosquitoes get drunk?
Why is popcorn a cinema snack?
How do football commentators remember players?
When did people start Mexican waving?
Why are slugs coming for my dishwasher?
Why has my bagel got a hole in it?
Why is the luggage all over the place?
Easter eggs: what's all that about?
Why are there so many breads?
Why don't I burn when I'm cycling?
Why are letters shaped like that?
Sniffing empty bottles?
Why is my hamster so ungrateful?
Where did they get the water from for the canals?
Why won't my glasses blow off?
An insult to science
Can you feel the tension in a room?
Is some music too hard to play?
My kitten won't listen to me
Mystery Hour Travel Edition: It's in a tin
How genetically related am I to Farage?
Raw meat, leaves and that?
Who invented the suit?
Where did "Geordies" come from?
A major induction hobs dispute
Unbelievable bee content
The truth about Guinness
Big Boxer's Beards
Why do journalists shout questions on Downing Street?
One question hijacks Mystery Hour
Running the marathon with a fridge
Where are the acorn trees?
What should I do with this pigeon?
The tyranny of the picture frame
Why does the UK have only one time zone?
Why is there a pink pigeon?
How do spiders get in and out of a bathtub?
How do train drivers get to work?
Why is my washing machine lying to me?
Does the world get heavier?
What happens when you lose a finger?
My kids love getting dizzy
Why can't I hear my accent?
Why peeling an egg can get chaotic
Have I got a superpower?
Where do geese go?
Cats, dogs and... ferrets?
Where do the rocket boosters end up?
Why don't you get savoury drinks?
What does my phone know about me?
Red sky at night, shepherd's delight
Cinnamon sneezes and soggy biscuits
A lot of horsing around
How we know the colours of dinosaurs
I haven't got the physics
Mountains and molehills
Eating the same breakfast over and over again
Some smells are better than others
The greater and lesser spotted
You end up with a fish at the end
Isn't that a motoring question?
Why is there only one human species?
Sandwiches are for WIMPS
Where do those babies come from?
I can see a rainbow
What counts as 'old skool'?
Simples or haggis?
Why are so many barbers Turkish?
Slugs up mountains
Has it got windier?
Who washes planes?
Why is boarding a plane so chaotic?
Caller has lots of apologising to do
Being rubbish at physics is not funny
Can Cats and Dogs Feel Embarrassed?
Can you copyright recipes?
Queen Victoria's underwear up for auction
'Don't call me baby', a pigeon's rendition
How did humans... do yeast?
Why won't automatic doors hurry up?
Something about knots and shoelaces?
Can we hear the sun?
Strong opinions on tennis balls
Gangsters and their toothpicks
So what exactly is Beagling?
Politicians and their gestures
Mould in my maple syrup
Why aren't surgeons Drs?
Nobody has ever asked this
Hay scattering across the motorway
What makes stuff sticky?
Do lawyers everywhere wear wigs?
Why are pheasants so stupid?
Is my phone listening to me?
They smuggled through some nonsense!
How can a celibate monk teach sex ed?
A very awkward question
When does 'falling over' become 'having a fall'?
How does a dog recognise its owner's whistle?
What do continuity announcers do the rest of the time?
Why do kids fear the dark?
How portable is DNA?
Why are so many people right-handed?
Where are all the great white sharks?
Why so many saints in Cornwall?
Why does my tea taste so awful?
Birds on one leg?
The origin of 'black and white'?
A lot of confusion over water vapour
Why do some people have more empathy?
What's Brexit got to do with my bin?
Why don't GIFs have sound?
Where does all the blood go?
Why do so many people struggle with H?
Where have all the kippers gone?
Where are the whites of their eyes?
Never seen a seagull in a tree...
Sleep paralysis - what's that about?
Why does other people's cooking taste better?
Why can't I get drunk?
Where do the doves go?
Is there an in-between accent?
Ham - what's that about?
How redheads are different
What do moths get out of wool?
Do rats avoid mice?
Why does your tongue get stuck on cold things?
Why do our bodies wear out?
Why do some people sneeze so violently?
Why do I need a point on my knife?
Can moths mate with butterflies?
Man calls about walking dog
Biscuits in lukewarm tea?
What's the easiest record to break?
Do birds get better at building nests?
Why do I keep doing terrible things?
How do the French impersonate the English?
Why is lemonade so fizzy?
Why are my nuts salty?
Who decides what's fashionable?
How am I 'vulnerable'?
Why do scabs itch?
Do farm animals have friends?
Why does this song make me feel sick?
Why is my cat freaking out?
Why do babies struggle to burp?
Where am I allowed to be naked?
Seedless grapes?
Fresh water and salt water fish?
Why are they called Tories?
Where does wind come from?
Why don't we eat turkey eggs?
Whites of the eyes?
Statistically, the trickiest sport?
What's heavier: still or sparkling?
Throwing axes?
Can chickens have twins?
Tumbling tins?
Why no seatbelts on trains?
What is the most Isolated place in the world?
High calibre mysteries
You're both right
How do knives work?
Why do chameleons camouflage?
Car keys on the head?
Why is my hair so long?
Like riding a bike?
How do they make sudoku difficult?
Flying Ant Day - what's it all about?
The weight of the world?
Why do we cry?
How do people find their tents at Glastonbury?
Coming Soon - The Followers
Why do lullabies work?
What about bone transplants?
Was the Old Bailey always old?
Do cats have their own personal navigation system?
Is handwriting inherited?
The sawing sound as a plane lands?
Do penguins have knees?
Flamboyance of flamingos?
Is there such thing as a friendly virus?
Can I build a zipwire to my neighbour?
Does colour exist?
How did they measure they height of mountains before modern technology?
Why do we cover ourselves when we sleep?
Where do birds go to die?
Momentary deafness in a yawn?
Salt and pepper?
Morse code in Chinese?
Can dogs recognise themselves in a mirror?
Fire alarm during surgery?
Who are the people in my dreams?
Qualification? I'm French!
Can vets operate on humans?
How do you remember things you've forgotten?
How many children does Boris Johnson have?
The largest UK postcode?
Why multiply before addition?
Are all bodies of water tidal?
Why is the West hillier than the East?
How do deaf people learn how to read?
Can you be allergic to water?
Why don't you forget how to ride a bike?
How far can the eye see?
Why is it called a 'nuclear football'?
How long does a house last?
Where does the weight go when you lose it?
Why do we get growth spurts?
What happens if you object at a wedding?
Emergency call with no signal?
Is destroying money illegal?
Facial recognition for animals?
Where do police lineups come from?
Why masculine and feminine?
Can I get a vaccine for my cold?
Introducing 'I've Been Thinking with Peter Frankopan'
Can the PM be impeached?
Introducing ‘If It Bleeds It Leads’
Mystery hour
Age of a pylon?
Roundabout impasse?
What is bitcoin?
Can a policeman commandeer a vehicle?
When did we start eating Spaghetti?
Does the Queen write a will?
What is a Shanghai in darts?
Is a coconut a nut?
Why do wet-suits do up at the back?
Are viruses really alive?
How does the post office sort first/second class post?
Can the space-station rust?
Two hat tricks in one football match?
The First Question of 2021...
Why would you call someone 'late'?
What is the most photographed object in the world?
If I give blood, do I transfer antibodies?
What is the whip?
Introducing Hunting Ghislaine with John Sweeney
Can you lock a plane?
Do plants feel pain?
Can being cold, give you a cold?
Why don't birds on telephone wires, frazzle?
Do Planes Honk?
You're arrested on a plane: what Country are you tried in?
Do we fly with the dead?
Why do we close our eyes when we sneeze?
Why are some insects 'dragons'?
How much does money cost to make?
Deja Vu?
Why are there safety caps on kid's vitamins, but not on alcohol?
Why are they called Tories?
How were magnets discovered?
Why do Bees Sting?
Why does your skin go wrinkly in the bath?
When do your arms stop growing?
Why don't we laugh in different languages?
Ice...what's that about?
Tchaikovsky absolutely slaps
Where can one Royal wee?
Why am I 6 foot under?
Why am I cheesed off?
Bingo numbers...why?
Pub names: why must they contain a limb?
Who pilots if both the pilots can't pilot?
When was the first world border drawn?
Why do I traditionally take my husband's name?
How do you get cranes up the top of buildings?
Why is it no.10 if there aren't 10 houses?
What's the origin of Money?
Leg hair, armpit hair... beard?
Pigs: where do they sleep?
Seatbelts on Trains?
What was the earliest recorded piece of music?
Why do men have nipples?
I'm about to have a very important dining experience; advice please?
More rain; more snails?
Do Bees seek death?
Can we say that on the radio?
Can we have Mystery Hour on a Friday?
Apples are seeds, so why aren't all apples trees?.
How does the urban fox find water?
Did Stonehenge have a roof?
Why does Monopoly's commission have a Monopoly on Monopolies?
What happens to doves when they are released?
Can I ask a motoring question?
Pilots? Always on the left hand side of the cockpit?
Why does the monopoly's commission have a monopoly?
Why does a crow dictate distance?
Why are objects in the rear-view mirror larger than they appear?
Why are mushy pea tins smaller?
Where does the word 'lanky' come from?
Why do flights fluctuate in price so much?
Why do MPs get such long holidays?
How do they decide where to put bus stops?
Do you get fat insects?
Do they copyright crosswords?
Do trees stop cleaning the air in winter?
Why do men lose their hair?
Why do you get 7 years of bad luck if you break a mirror?
Is there a point at which things can't get hotter?
How and why do our taste buds mature?
What do they do with amputated limbs?
When did diamonds become popular?
Why do clocks go clockwise?
Why can't we get a more accurate due date for babies?
How does the The Royal Mint decide how much money to print?
What crisp flavour is ?cool orginal??
Why do politicians bob?
Will tidal power effect the moon?
What do they do with olive pits?
Who invented calories?
Why do chefs wear patterned trousers?
Do emergency service vehicles have set speed limits?
How tall does a building have to be considered a skyscraper?
Chris Moyles pops in to ask a question
Why does sunlight fade things?
How do scallops multiply?
Can you take a fish to the vets?
Why isn't the Queen's portrait up to date on the latest notes?
Where do flies go when it rains?
How does a moth know what colour it is?
Why don't birds interbreed?
What did they do before toothpaste?
Where was world's first ever embassy?
Why do people speak louder after drinking alcohol?
Why does mint toothpaste make you cold?
James O'Brien's Mystery Hour - 21st June
Can bees get lost?
What happens if you refuse to give your name when you're arrested?
Do pigs get sunburn?
Why is tinfoil only shiny on one side?
How do they make firework shapes?
Where do gold nuggets come from?
How did saloon doors keep Western saloons safe at night?
What happens when left-hand roads meet right-hand roads?
Why don't flakes melt?
Why do we have bobbles on bobble hats?
Why do we always have salt and pepper on the table?
Why don't ducks get frostbite?
Why do some people sink?
Why does life seem to go faster when you're older?
Why do escalator hand rails move faster than the steps?
What causes us to 'snearly'?
Why do we call them 'Cabinet' ministers?
Do we really eat spiders at night?
Can worms climb trees, if so, how?
Do fish get thirsty?
Why are insects so quick to get away?
Why do some words become swear words?
What causes the massive lumps on trees?
How do pathologists manage to find dental records?
What's the difference between toilet paper and tissue paper?
Why are corned beef tins designed the way they are?
What makes you a morning person?
How do I start up my own country?
Why can't you get blackcurrants in America?
Why don't squirrels eat conkers?
What came first, the colour orange or the fruit orange?
James O'Brien's Mystery Hour - 28 Sep 17
Why do they sell popcorn in the cinema?
James O'Brien's Mystery Hour - 14 Sep 17
James O'Brien's Mystery Hour - 7 Sep 17
James O'Brien - Mystery Hour
Why X symbolises a kiss
Why can we hold our pee until wee see the toilet?
Who is Pete?
Custard slices - really?
James O'Brien's Mystery Hour - 14 Jul 17
How do the Chinese run a library?
Why do people have surnames named after colours?
If you drink a hot drink in hot weather does it cool you down?
Why are some chocolates wrapped in foil?
When do you stop falling out of bed?!
Why is the bee a symbol of Manchester?
How thick does glass have to be before you can't see through it?
Do ducks know how many ducklings they have?
Why throw salt over your shoulder?
Like it or lump it - the origin of that!
Why do we call cats 'pussy'?
Watch modelling - why are the hands in the same place?
Gary is going to call back next week..
Could the Queen just say no?
The first time a baby's heart beats
Are bogeys nutritional?
Coat and dog tails
I love cranes
Why heart shapes don't really look like hearts
Can kangaroos swim?
A dead squirrel landed on my head
Why don't I salivate when I see a cow, but do when I see a steak?
What's up with the washing machine?
What does the X mean in LAX?
A Christmas themed Mystery Hour this week
How do sat navs know where traffic is?
Why Roger?
Would stomach acid burn your skin?
James O'Brien - The Whole Show - 25 Nov 16
Why are the keys on a piano black and white?
Where was the first ever University?
James O'Brien's Mystery Hour
DNA is it exactly 50/50?
Do animals learn to run faster?
A special charity mystery hour - featuring Jones 'The Engineer'
Aled Jones makes a surprise appearance on Mystery Hour
Why do my headphones get tangled up?!
How are the letters on bus stops decided?
How do the police name their operations?
When does a Master become a Mr?
Why are nurseries called nurseries?
Can a swan break your arm?
Food fads - how do they come about?
Why are all bubbles white?
Another Mystery Hour With Many Belly Laughs
Why did my water freeze?
James O'Brien's Mystery Hour - 14 Jul 16
Why is there a Pineapple on the top of the Wimbledon trophy?
Why do birds stand on one leg?
How do you know not to fall out of bed?!
James O'Brien's Mystery Hour - 9 Jun 16
Sliced bread, the twins and grunting when you are old? - 2 Jun 16
Mystery Hour - 26 May 16
James O'Brien's Mystery Hour - 19 May 16
Mystery Hour - 12 May 16
Toilet roll, why two pieces? - 5 May 16
Queen Bees battle - 28 Apr 16
What's the difference between OBE & MBE - 21 Apr 16
Do snails go to high areas because they know they are going to die - 14 Apr 16
Why is Easter early this year - 24 Mar 16
Can you watch your eyes move - 17 Mar 16
Did the crew eat Babe the pig? - 10 Mar 16
Why do we cheers 3 times? - 3 Mar 16
If you are a Sir can your partner have a title? - 25 Feb 16
What time zone is space on? - 18 Feb 16
Who is the one hit wonder?- 11 Feb 16
Harvey is James' no.1 fan - 4 Feb 16
Why 'Luke' warm? - 28 Jan 16
I think we caught someone out cheating - 21 Jan 16
James O'Brien's Mystery Hour - 14 Jan 16
Ok let's stop on the duvet question - 7 Jan 16
Why do bagels have holes? - 17 Dec 15
Why do people kiss under mistletoe? - 10 Dec 15
Why aren't we allowed to close the blinds on a plane during take off? - 3 Dec 15
Why don't ladybirds get stuck in spider webs? - 26 Nov 15
Why don't the animals we eat get rigor mortis? - 19 Nov 15
What is the origin of 'The Penny Drops'? - 12 Nov 15
Why don't dolphins get the bends?- 5 Nov 15
How are we able to locate sound when it's coming from in front of you? - 22 Oct 15
Why do Elephants have big ears?- 16 Oct 15
Make Some Noise Mystery Hour - How can I get my teddy sorted? - 8 Oct 15
Why are calulators different to phone keypads? - 1 Oct 15
Why is one side of tin foil shiny, and the other isn't? - 24 Sep 15
Why do I go deaf when I yawn? - 17 Sep 15
If i levitate and land, would I be in the same spot? - 10 Sep 15
Why do medical symbols have snakes? - 3 Sep 15
Why do books start a page with capital letters? - 27 Aug 15
Why does a cement mixer go anti clockwise? - 13 Aug 15
What was a # before twitter - 6 Aug 15
Can a dog smell fear? - 30 Jul 15
Does Robert De Niro ever die in a film? - 23 Jul 15
Why do ambulances have cat flaps? - 16 Jul 15
What is the feeling I get when I think I'm falling? - 9 Jul 15
Can you be stung by a stinging nettle once it is cut?- 2 Jul 15
Why does Prince Edward have so many uniforms? - 25 Jun 15
What do people practice tattoos on? - 18 Jun 15
Why do some eggs have chickens in? - 11 Jun 15
Why is he called 007 - 4 Jun 15
What song does an ice cream van play?- 28 May 15
Why does my milk get a skin on it? - 21 May 15
Why do dipomatic cars have special number plates? - 14 May 15
Where is the line when it comes to buying a Saveloy from up north to down south? - 7 May 15
What are those things that look like bird houses at the side of the road?- 30 Apr 15
Why can i only lift the top left of my lip? - 23 Apr 15
Why do I get static from my car trips? - 16 Apr 15
Why do pencils have a B in their name? - 19 Mar 15
Can you tickle in wrestling? - 12 Mar 15
Why do I always need a wee when i get to my front door? - 5 Mar 15
Can you batter a Savaloy? - 26 Feb 15
Can I paint my ex girlfriends dog for Valentines day? - 12 Feb 15
Why is the moon level with my plane? - 5 Feb 15
How do I become a private detective? - 29 Jan 15
Why is it called pins and needles? - 22 Jan 15
what is a brownie in motion? - 15 Jan 15
Do only cats purr? - 8 Jan 15
Christmas Special Mystery Hour - 18 Dec 14
Do extras talk on set? - 11 Dec 14
Why is it called a skip?- 4 Dec 14
What determines your handidness? - 27 Nov 14
Can a love bird live alone?- 21 Nov 14
Do animals have left or right paw prefernces? - 13 Nov 14
Why does my nans apple tree also grow pears?- 6 Nov 14
Can we ever grow wings through evolution - 24 Oct 14
Why do air stewards sit facing backwards on flights? - 16 Oct 14
Make Some Noise Mystery Hour special - 9 Oct 14
Why is the moon always dull in photos? - 2 Oct 14
Why do I float in all swimming pools? - 25 Sep 14
How can adding water to noodles create more calories?- 18 Sep 14
Where does the squared come from in E=MC2? - 11 Sep 14
Can chickens be born as twins if an egg as two yolks? - 4 Sep 14
Can you see the American flag on the moon through a telescope?- 28 Aug 14
Can animals get jet lag? - 14 Aug 14
Why are they called Spring Rolls? - 7 Aug 14
How far can the human eye see?- 31 Jul 14
Why does black get hotter in the sun?- 24 Jul 14
Why does your voice change on Helium? - 17 Jul 14
Why don't freezers have a light? - 10 Jul 14
Why are bricks in amsterdam houses so small? - 3 Jul 14
Why does my cat like my swim wear? - 26 Jun 14
Can dogs control the wagging of their tails? - 19 Jun 14
Can a Boeing 747 Loop the Loop?- 12 Jun 14
When does the sky start? - 5 Jun 14
Why do Chickens keep laying eggs even if they don't hatch? - 22 May 14
James O'Brien's Mystery Hour - 15 May 14
Why is it not over until the fat lady sings? - 8 May 14
James eats humble pie in Mystery Hour- 1 May 14
Why do we have hung and hang?- 24 Apr 14
The mystery of the measuring stick and Chickens - 17 Apr 14
Why do Irons not have an on or off switch? - 10 Apr 14
What is a 1st or 2nd world country? - 3 Apr 14
Do bell ringers play sheet music? - 27 Mar 14
Can the police just take your car like in films? - 20 Mar 14
Do magnets work in space?- 6 Mar 14
Why do we say pop your clogs?- 27 Feb 14
Why does the moon depending on the day seem larger or smaller?r - 20 Feb 14
When did the Mixtape start?- 13 Feb 14
Can a Judge be called up to go on Jury duty?- 6 Feb 14
Why do coins but not bank notes have dates on? - 30 Jan 14
What qualifications do you need to be a vicar? - 23 Jan 14
Who invented swimming? - 16 Jan 14
When does a murder become an assasination?- 9 Jan 14
Where does the phrase hard cheese come from? - 2 Jan 14
Does the sun have weather? - 12 Dec 13
How do you explain colours to blind people? - 28 Nov 13
Why do stars twinkle? - 21 Nov 13
Why is HP sauce HP Sauce? - 14 Nov 13
How do you build a house on a slope? 7th Nov
Can honey be mass produced? 24th Oct
Why does my tummy rumble? 17th Oct
What has happened to thin sliced bread? 10th Oct
How long is the umbilicle cord?
Why do towels get dirty? 26th Sept
Who made the first cake? 19th September
Can Astronauts cry in space? - 12 Sep 13
What is a decibel? - 5 Sep 13
Is an apple alive? 29th August
Why don't we eat blue food? 22nd August
How many cows does it take to make a pint of milk? 8th August
Why aren't there instructions on how to use toothpaste?
Why don't dogs eat us? 25th July
Why does Nelson face that way? - 18 Jul 13
What is 20/20 vision? 11th July
Why do your eyelids puff up when you're tired? 4th July
How much saliva do we produce each day? 27th June
Why do pigeons nod their heads when they walk?- 20 Jun 13
Why do babies have different blood to their mothers? 13 June 13
Why are woodlice called cheesy bugs? 6th June
Where do all the dead deer go? 30th May
What's better for you, bread or toast? 16th May
Why does my ear smell of cheese? 9th May
How far does daylight stretch? - 2 May 13
Why do some people have curly hair? 25th April
Can violinists be left handed?
Can you make a pigeon explode? 28th March
Why is Hippos milk pink? 21st March
Why do we say 'Bully for you'? 14th March
Why is the Isle of Dogs called the Isle of Dogs? - 7 Mar 13
Why is it called 'how's your father'? 28th Feb
Why aren't clouds disturbed when you fly through them?
Do animals have accents? 14th Feb '13
Can dogs suck through a straw - 7 Feb 13
Did dinosaurs have genitalia? Jan 31st
James O'Brien's Mystery Hour - 24 Jan 13
Mystery hour - How does an ice spike form in a bird bath?
Will sat nav work when you're 30,000ft up in a plane?
Mystery hour - gammon and ham, the difference? 3rd Jan 2013
What note is the bong on Big Ben?
Mystery Hour - how do touch screens work?
Mystery hour - can a dog hair grow in human skin?
Mystery Hour - Why don't we bleed extensively during surgery?- 15 Nov 12
Mystery Hour - Why do girls courtsey and boys bow? - 8 Nov 12
Mystery hour - how are feet measured for shoes?
Mystery Hour - Can you make water? - 18 Oct 12
Mystery Hour - What does the saying raining cats and dogs really mean?
Mystery hour - Why are restaurant signs shown using a spoon and fork? - 4 Oct 12
Mystery hour - why do macaroons have rice paper on the bottom?
Mystery hour - why does writing on paper make it curl?
Mystery hour - Why is it called a grand slam?
Mystery Hour - Why don't hungry foxes eat pigeons? - 6 Sep 12
Mystery hour - How do bats cling on when they're asleep?
Mystery hour - What's the booby in 'Booby Trapped'?
Mystery hour - How do we know when horses are happy?
Why does fish and yoghurt make you ill?
Mystery hour - Why are their 5 olympic rings?
Mystery hour - How do cats get their markings?
Mystery Hour - Why is a tennis ball green? 12 Jul 12
Mystery hour - can you wear a toupee in your passport picture?
Mystery hour - why don't we have female composers?
Mystery hour - Why are mens trouser parts called flies?
Mystery hour - Why do pigeons have manky feet?
Mystery hour - Why does salt make slugs melt?
Mystery hour - Why aren't there jokes on lolly sticks?
Mystery hour - Do dogs get stung by stinging nettles?
Mystery Hour: Do Birds Get Jet Lag? Thurs 17th May
Mystery Hour: Who owns the moon?