Do Buddhists believe that Buddha is a god? I don't think so.
As I understand it, Allah is the God of Abraham just as Jehovah is. One God, many names.
No they don't. Buddha was a highly respected teacher.
Buddhism couldn't even be considered a religion if not for their believe in the supernatural, ie: reincarnation.
Please see Hubal and Allah the Moon God?, Islam's God, and A Peek Behind The Crescent Moon Of Islam. It it true that the Hebrew El and the Arabic al are cognate, and both mean god; what follows identifies which "god" is being referred to. The "Al-lah" of the Koran is not the El Shaddai of the Bible.