Difficult

A mighty weapon in the war against winged household pests.

I am whole but incomplete. I have no eyes, yet I see. You can see, and see right through me. My largest part is one fourth of what I once was.

There is a creature of God whose body is hard; it does not wish to eat unless you strike its head.

Used on a diamond and left on a board. It's great for a gymnast his grip to restore. What is it?

Riddles and Answers