3.07 Vayero 5783

1) In Eretz Yisroel it is prevalent that at [the daily] Birchas Kohanim, the Chazan, when prompting the Kohanim word for word, does so in an undertone. Whereas elsewhere, the Chazan says his part in a regular tone. What’s the Chabadtake on this?[1] 2) A question from Ukraine:  We are suffering frequent power cuts. Our communal kitchen is manned by non-Jewish staff. In order to address the issue of Bishul Akum, I normally switch on the electrical ovens at the beginning of the day. Now, when power is restored, is it necessary for me relight the ovens?[2] 3) In our nursery, we made Challos. For some reason, a non-Jewish helper placed the Challos in the oven. What is the status of the Challos and that of the baking tins?[3] 4) A Jewish man is living with a non-Jewish woman. He is keen to put up a Mezuza, and she is equally keen. Does it make any difference – re. saying a brocho - if the house is her property?[4] 5) When affixing a Mezuza to the door of a shop, is a brocho said?[5] 6) In error, I said the brocho Mezonosover bread that is actually Hamoitzee; do I now need to say the correct brocho?[6] 7) What if I only realized my mix-up after having recited Al haMichya; do I now need to recite the full bentshing?[7] [1] בס' שבת כה בנדו"ד. [2] ראה יו"ד מד. [3] בשו"ע יו"ד סי' קיב ש"ך סק"א משמע דלא מהני עריכת ישראל. וכן מפורש בערוך השלחן שם סעיף י. [4]הערה בקי. [5] ראה אגרות. [6] שליחות כ 96. [7] שליחות כ 96.