Answer:
I have six faces but not even one body connected 21 eyes in total but cannot see.
The more you take the more you leave behind. What are they?
I don't have eyes, but once I did see. Once I had thoughts, but now I'm white and empty. What am I?
What is that you will break even when you name it?
I am heavy forward, but backward I'm not. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.