Answer:
Used on a diamond and left on a board. It's great for a gymnast his grip to restore. What is it?
I have it, I don’t share it. If I share it, I don’t have it. What is it?
What turns everything around but does not move?
The root tops the trunk on this backward thing, that grows in the winter and dies in the spring.
Twigs and spheres and poles and plates. Join and bind to reason make.
You use it between your head and your toes, the more it works the thinner it grows.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?