Answer:
I am the thing that is used to make your weight. What am I?
I am filled with garb the price is free. Just return what you don't need.
What is light as a feather but even the strongest man cannot hold it for more than a few minutes?
I have long legs crooked thighs little head and no eyes.
I have six faces but not even one body connected, 21 eyes in total but cannot see. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.