Answer:
You cannot keep me until you have given me. What am I?
I can never be stolen from you. I am owned by everyone. Some have more some have less.
What loses its head in the morning but gets it back at night?
I will disappear every time you say my name.
I can be entertaining until you realize some pieces have been lost.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.