According to Rashi...
1. What was Pharoah's rational for not letting the children leave Egypt? (10:11)
2. Why was plague of locust in the time of Yoel worse than the one in the time of Moshe? (10:14)
3. Why did Hashem bring the plague of darkness? (10:22)
4. Why did Moshe have to say "please" when instructing the Jews to ask the Egyptian for their processions?
5. What time did Moshe say the plague of the first born would come? (11:4)
6. How many years were the Jews in Egypt? (12:40)
7.Why did Hashem choose the fifteenth of Nissan as the date of the redemption? (12:41)
8. How much is required to redeem a first born son? (13:13)