Reason Mishna changes the variable from Reisha to Seifa and discussion of halacha when the 14th falls on Friday

The idea of leaving Egypt "chamushim" highlights that we are protected when we are united, and one way to accomplish this is to understand the son who "does not know to ask"

Shemot Rabba (Va'era) 7:4- through the reward of the righteous and the suffering and recognition of the wicked Hashem is ultimately honored

While one source would imply that the underlying cause for the suffrage in Egypt was due to a misdeed of Avraham, another would imply it was due the lacking in his descendants. Which one was it?

The need for the Egyptian suffering and it's resolution are a powerful lesson in the necessity of Jewish unity.

Shemot Rabba (Shemot) 1:28- Backstory to Moshe killing the Mitzri and two Jews fighting

Series of teachings of R' Yehoshua ben Levi and determination as to underlying motivation for leniency of villagers to read earlier

Ranking of mitzvos that take precedence when have opportunity to perform two of them (megilla, avoda, Torah, meis mitzva)

Sources for 15th fot walled cities and debate if walled from Yehoshua bin Nun/Achashveirosh, establishment of the "osios sofios" and Targumim

The "complaining" of Yaakov in his conversation with Pharaoh requires some sort of an explanation.