Answer:
I am a chair that can move. What am I?
I am as hard as metal, yet as flimsy as glass. I shine like a star, yet I am only a rock. What am I?
Travel a mile and I will change, travel a million and I will end as I started. What am I?
I have 4 wings but cannot fly. I never laugh and never cry. On the same spot I'm always found toiling away with little sound. What am I?
I give people a huge fright but at the end I'm sweet. I normally celebrate at night when there's less heat.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.