Answer:
I wiggle and cannot see; sometimes underground and sometimes on a tree. I really don't want to be on a hook and I become a person when combined with “book”.
If I drink I die. If I eat I am fine. What am I?
If you've got me I'm everywhere. If you share me I'm nowhere. What am I?
I have a neck and no head, two arms but no hands. I'm with you to school, I'm with you to work. What am I?
I am black, white, and read all over. What am I?
What made Cyclops quit teaching?