Answer:
A dragons tooth in a mortals hand, I kill, I maim, I divide the land.
What is up that’s also down? What’s a smile and a frown?
What turns everything around but does not move?
I dig out tiny caves and store gold and silver in them. I also build bridges of silver and make crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs my help. Yet many people are afraid to let me help them.
What can you catch but not throw?
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?