Answer:
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What is it?
There are several different kinds, but the one you pick doesn't do its job. What is it?
What stays the same size no matter how much they weight?
The sun bakes them, the hand breaks them, the foot treads on them, and the mouth tastes them.
Gold in a leather bag, swinging on a tree, money after honey in its time. Ills of a scurvy crew cured by the sea, reason in its season but no rhyme.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?