Answer:
Come up and we go, Go down and we stay.
When will water stop running down hill?
The part of the bird, that is not in the sky, Which can swim in the ocean and always stay dry. What is it?
I'm the start of eternity and the end of space. There are two of me in heaven and one in hell.
This is a shape and a symbol that we literally cannot live without. What is it?
What never gets any wetter no matter how hard it rains?