Answer:
The buyer doesn’t want it, the producer doesn’t need it and the user doesn’t know their using it.
Up on high I wave away but not a word can I say.
Poor people have it. Rich people need it. If you eat it you die. What is it?
Nothing specific, but more than a few. This many clustered, together will do.
The eight of us go forth not back to protect our king from a foes attack.
Why did Superman flush the toilet?