Answer:
What can be filled with empty hands?
What comes once in a minute, twice in a moment, but never in a thousand years?
Many have heard it, but nobody has ever seen it. It will not speak until spoken to. What is it?
It's like food but water kills it. What is it?
Goes over all the hills and hollows. Bites hard, but never swallows.
I’m grown from darkness but shine with a pale light. Very round I am and always a lady's delight.