No you don't need a degree to write books. Getting your book published is an entirely another matter.
Whatever major you want - you do not have to have any degrees to write. You can get an English degree if you wish, but you can also get any degree that you want to get.
In the Bible, God choose certain people to write 66 books.
Yes, there are certain episodes that that write a book about.
he graduated from Boston college
If you are the original author - then no; however certain countries have varying copyright laws about the fair use of such books (whether you wrote the book or not.)
he did write both
how many books did the mayan write
He didn't write any books.
she started to write books in 2001
Sir Edmund Hillary wrote several books, including "High Adventure," "No Latitude for Error," and "View from the Summit."
incas didn't write books but they wrote on clay
It actually depends. You would use which if you were asking what book they wrote among a certain selection of books. You would use what if you were just asking in general.