Answer:
What gets sharper the more you use it?
Marking mortal privation when firmly in place. An enduring summation inscribed in my face.
I ask no questions but receive a lot of answers
A thousand wheels, but move I do not. Call me what I am, call me a lot. What am I?
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”.
What made Cyclops quit teaching?