Answer:
What goes up and down the stairs without moving?
a king,and Queen walked outside it was dark outside when they walked back in another person was with them,Who?
I'm a god. I'm a planet. I measure heat.
In the sun it likes to play; In the rain it goes away; Walk or run it always follows; In the mud it always wallows.
Deep, deep, do they go. Spreading out as they go. Never needing any air. They are sometimes as fine as hair
Who makes it, has no need of it. Who buys it, has no use for it. Who uses it, can't see it. What is it?