Answer:
If you have it, you donโt share it. If you share it, you donโt have it. What is it?
You do not want me when you donโt have me, but when you have me you donโt want to lose me. What am I?
I turn everything around, but I cannot move. When you see me, you see you! What am I?
What is at the end of a rainbow?
I travel in a gaggle.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.