1)
Why does the Torah need to tell us that Noach bore three sons, seeing as it immediately lists them by name?
1.
Ramban: To inform us that, as opposed to his contemporaries, who bore many sons and daughters, he bore only three. 1
2)
Why does the Torah list Noach's sons in this order, when their chronological order of birth was Yefes, Shem and Cham (acc. to Ramban)?