Answer:
Take it and you will lose or gain more than the others.
What is it called when a cat wins a dog show?
I am bought by the yard but worn by the foot
I have a head but never weeps. I have a bed but never sleeps. I can run but never walks. I have a bank but no money. What am I?
I help you carry your books.
It weighs next to nothing but no one can hold it for long. What is it?