Know of any GOOD riddles that are medium-easy 10 points?!

Question: Know of any GOOD riddles that are medium-easy 10 points!?
Answers:

A person who makes it, sells it
A person who buys it, doesn't need it
A person who needs it, can't see it
------What am I!?

Is it a good riddle!?Www@Enter-QA@Com

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