Assorted Halachos- Part 81

In this shiur we discuss: 1) Which challah is cut on Shabbos, 2) Is there any rules regarding distributing the challah, 3) If one put cholent back on the fire, but not sure if the beans were fully cooked?, 4) If saying shema before davening does he hold his tzitzis? 5) If one washed for bread and realized the bread is moldy was the al netilas yadayim a bracha lvatala?, 6) Can one make dough for challah with a bracha and then freeze it and bake it weekly, 7) Is it ok for a child to take his father's blood who is a diabetic