Which of the following is the ONE exception that takes priority over reading the Megillah?
Halacha 1 explicitly states that the only thing that supersedes Megillah reading is encountering a meit mitzvah — a corpse with no one to bury it. Torah study and Temple service are both overridden by Megillah.
Question 2
A city that was NOT walled in the time of Joshua bin Nun but IS surrounded by walls today — on which date does it read the Megillah?
Halacha 4 rules that only walls present in Joshua's era determine the date. A currently-walled city that was unwalled then reads on the 14th as an עיר.
Question 3
When villagers read the Megillah early (before the 14th) on their synagogue-gathering day, what is required?
Halacha 7 states that whenever the Megillah is read before the 14th, it may not be read unless ten people are present.
Question 4
If the 15th of Adar falls on Shabbat, when do the inhabitants of walled cities (כרך) read?
Halacha 14 rules that walled-city inhabitants advance their reading to Friday the 14th when the 15th falls on Shabbat — and in this case, everyone (both walled and unwalled) reads on the 14th.
Question 5
A community reads the Megillah in the first Adar, then the court declares a leap year. What must they do?
Halacha 12 rules explicitly that if the Megillah was read in the first Adar and the year is subsequently intercalated, the community must read again in the second Adar at the proper time.