Answer:
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.
What is it that you ought to keep after you have given it to someone else?
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.
What goes up and down but never moves?
Useful term for when you need to start a fire or notice someone with the same shirt as you.
What is always coming but never arrives?