Answer:
My keepers feed me colored balls. With sticks they store on my den walls. Sometimes I store them in my pouch. Sometimes deep in my belly; ouch!
I am a rock group with four members. All dead one was assassinated.
A piece of paper that takes most people 3 or 4 years to get.
I go up when the rain comes down. What am I?
I am owned by the poor, the rich do not need me. If you eat me, you will die! What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.