Answer:
The person who makes me doesn't need me. The person who buys me doesn't use me. The person who uses me doesn't know it. What am I?
the only amusing part of the body
I am a sound made by felines when petted.
I am all around you, but you cannot see me. I have no throat, but you can hear me. Valued during summer but despised in the winter. What am I?
I have six faces but not even one body connected, 21 eyes in total but cannot see. What am I?
When is it bad luck to see a black cat?