Answer:
I hold two meanings. With one I may be broken with the other I hold on.
If I drink I die. If I eat I am fine. What am I?
I need to be taken from you before you can have me.
What goes all around the world but never leaves its corner?
I have all the knowledge you have. But I am so small that I can fit into your hands. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.