Answer:
I am the signature stroll of ducks and penguins
What is cut on a table but is never eaten?
When I point up, it's bright. When I point down, it's dark. What am I?
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?
I am lighter than the material I am made of. You see parts of me but more of me is hidden underneath.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.