Answer:
I'm the son of water but when I return to water I die. Who am I?
Up on high I wave away but not a word can I say.
What can travel around the world while staying in a corner?
They are Dark, and always on the run. without the sun, would be none!
The edge of earth and bread.
As round as an apple. As deep as a cup. All the king's horses can't pull it up.