Answer:
What is something you can give away as many times you want without ever losing it?
What occurs four times in every week, twice in every month, only once in a year but never in a day?
It is in every mountain, it's not in any hill, it's not in all the world, and yet it's in the mill.
Power enough to smash ships and crush roofs. Yet it still must fear the sun.
In your fire you hear me scream! Creaking and whining yet I am dead before you lay me in your hearth.
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?