Answer:
I am an English word that is as long as I am valued.
I make a loud sound when I'm changing. When I do change I get bigger but weigh less. What am I?
What can one catch that is not thrown?
A thousand wheels, but move I do not. Call me what I am, call me a lot. What am I?
I have a head, tail, but no arms and legs. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.