If someone ate matzah without intending to fulfill the mitzvah (e.g., forced by gentiles) — what is the ruling?
Halacha 3: even if gentiles forced him to eat matzah, he fulfills the obligation after the fact, since the act of eating itself suffices.
Question 2
Is matzah baked on a pan (not in an oven) valid for the mitzvah?
Halacha 6: matzah baked on a pan in any manner is valid for the mitzvah, since it is considered bread.
Question 3
May a kohen fulfill the matzah obligation by eating challah (terumah)?
Halacha 8: kohanim and their households may fulfill the obligation with challah and terumah, since these are permitted foods for them.
Question 4
Why did the Sages forbid eating matzah on Erev Pesach (14th of Nisan)?
Halacha 12: the Sages forbade eating matzah on Erev Pesach so that one eats matzah at the Seder night with genuine appetite.
Question 5
Why are Todah loaves that one 'made for himself' invalid for the matzah mitzvah?
Halacha 9: Todah loaves and Nazirite loaves made for oneself are invalid because the verse 'Guard the matzot' requires matzah specifically watched from the time of kneading for the sake of the mitzvah.