Answer:
Who makes it, has no need of it. Who buys it, has no use for it. Who uses it can neither see nor feel it. What is it?
I have four legs but no tail. Usually I am heard only at night.
I have two hands but cannot clap
I have four wings but cannot fly. I never laugh and never cry. On the same spot always found, toiling away with little sound.
As round as an apple. As deep as a cup. All the king's horses can't pull it up.
If lightning strikes an orchestra who is the one most likely to get hit?