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?
Two in a whole and four in a pair. Six in a trio you see. Eight's a quartet but what you must get is the name that fits just one of me.
Break me and I am better, immediately set and harder to be broken again. What am I?
I am owned by the poor the rich does not need me. If you eat me you will die!
Package beneath a tree, inside a tasty treat. Keep it for a month, the taste is just as sweet. What am I?
Give it food and it will live, give it water and it will die.