Answer:
Whoever made me doesn't want me. Whoever bought me doesn't need me. Whoever uses me doesn't know me. What am I?
I am a sound made by felines when petted.
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
I am very easy to get into,but it is hard to get out of me. What am I?
you hold my tail while I fish for you
What made Cyclops quit teaching?