Question: How do you know which is the correct side of the doorpost to affix your mezuzah?

Short Answer: Each situation must be separately analyzed, using certain guidelines, including which way the door opens, which room has greater use, and which way people walk through the rooms.

Question: May a 29-year-old serve as chazan on Yamim Nora’im?

Short Answer: Even though the Rama writes that we should choose a chazan who is at least 30 years old, many Acharonim disagree.