Answer:
What is it that after you take away the whole some still remains?
I see what you see feel what you feel and hear what you hear. I know all of your moves before you make them. I even know the moves you didn't make.
I go around a yard but do not move. What am I?
What has a head and a tail, but no body or legs?
You use me from your head to your toes. The more I work, the thinner I grow. What am I?
What made Cyclops quit teaching?