Answer:
I can be cracked made told and played.
You use me between your head and your toes the more I work the thinner I grow.
I begin and have no end. Eventually, I will be the ending of all that has begun. What am I?
I have a brother. However much we run we do not reach each other.
What do you get when you cross a cow with a trampoline?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.