Answer:
I have six faces but not even one body connected 21 eyes in total but cannot see.
I am not alive but I can die. What am I?
I'm the source of all emotion but I'm caged in a white prison.
What body part is pronounced as one letter, but written with three, only two different letters are used?
I am filled with garb the price is free. Just return what you don't need.
I am owned by Old McDonald.