Answer:
I run up and down the stairs without moving. What am I?
You buy me to eat, but never eat me. What am I?
When I point up, it's bright. When I point down, it's dark. What am I?
What word begins and ends with an E, but only has one letter?
I am wood that is neither hard straight or crooked
No matter how little or how much you use me, you change me every month.