Answer:
I am whole but incomplete. I have no eyes, yet I see. My largest part is one fourth of what I once was. What am I?
If you have me you want to share me. If you share me you don't have me. What am I?
I turn everything around, but I cannot move. When you see me, you see you! What am I?
Weight in my belly, trees on my back, nails in my ribs, feet I do lack. What am I?
I am good at concealing what's real and hide what's true. Sometimes I bring out the courage in you!
What never asks questions but receives a lot of answers?