Answer:
My head and tail both equal are my middle slender as a bee. Whether I stand on head or heel Is quite the same to you or me. But if my head should be cut off the matter's true though passing strange directly I to nothing change.
I'm white and used for cutting and grinding. When I'm damaged, humans usually remove or fill me. For most animals I am a useful tool. What am I?
Whoever makes it tells it not. Whoever takes it knows it not. Whoever knows it wants it not
The more holes you cover the lower I go.
The more you take, the more you leave behind. What are they?
When is it bad luck to see a black cat?