Answer:
I turn everything around, but I cannot move. When you see me, you see you! What am I?
I am a mother from a family of eight. I spin around all day despite my weight. Had a ninth sibling before founding out it was fake. What am I?
Weight in my belly, trees on my back, nails in my ribs, feet I do lack. What am I?
What goes through a door but never goes in and never comes out?
Flat as a leaf round as a ring. I have two eyes but can't see a thing.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.