Answer:
I'm a god. I'm a planet. I measure heat.
What does a stone become when in the water?
A man goes out in heavy rain with nothing to protect him from it. His hair doesn't get wet. How does he do that?
What comes down but never back goes up?
What has many keys but cannot open a single lock or door?
Two little holes in the side of a hill. Just as you come to the cherry-red mill.