Answer:
What goes up and down stairs without moving?
I do not have eyes but I once could see. I used to have thoughts but now Iām empty.
I come in different colors and shapes. Some parts of me are curvy, some are straight. I look like I can belong anywhere but there is only one right place for me. What am I?
I have four wings, but cannot fly, I never laugh and never cry; On the same spot Iām always found, toiling away with little sound. What am I?
*forward* *backwards*is what I do all day. I come in all different shapes and sizes. I can be scary and I can calm you down.
No matter how little or how much you use me, you change me every month.