Answer:
I am an odd number that become even when beheaded.
Until I am measured, I am not known. Yet, how you miss me when I have flown. What Am I?
I widen my jaws when you poke two fingers in me. I especially like to devour papers
Adored by few, feared and hated by many. Mistress of the entire universal reason, master in the art of numbers. Some may have solved many of my mysteries, but there are still many of them to find. What am I?
I am the tool for inspiring many. Buy me in the store for not much more than a penny. Don't overuse me, or my usefulness will go. What am I?
What made Cyclops quit teaching?