Answer:
My first half means container. Not a lot of people understand my language. What am I?
I must be broken before you can use me.
You are my brother, but I am not your brother. Who am I?
I hold two meanings. With one I may be broken, with the other I hold on. What am I?
I have hands but cannot clap. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.