Shaylos

Some things that are bothering me:

1) The Rambam brings down a Medrash that says that Tzara'as appears gradually, first on the buildings, then the clothes, then the person's body. However, Tzara'as appears 5 times in Tanakh: Moshe, Miriam, Na'aman, Gechazi, Uzziayahu haMelech. In each time, it appears suddenly.

What's the Baraisa talking about?

2) A man kills another man b'shogeg, accidentally, manslaughter. He's not in the Ir haMiklat, City of Refuge and the Go'el haDam approaches to kill him. Can he kill the Go'el haDam in self-defence?

3) What is the female form of "rabosai"?

4) Moshe got buried on Har Tevo, Aharon on Har Har. Why didn't Miriam get buried on a mountain?

More questions to come, as I think of them.