UnScramble this Word: o t t s a a n u r?

Questions

what is the name of the wave generator in a microwave oven?

the muses were the goddesses of poetry and song, how many of them were there?

all members of which religion bear the surname singh?

name the wife of king ahab who jehu ordered to be thrown to her death from a window?

on a human body hair grows out of pits in the skin. what are these pits called?