Answer:
I run up and down the stairs without moving
the only amusing part of the body
I am an English word that is as long as I am valued. What am I?
Take off my skin I won't cry but you will. What am I?
I start with an E end with an E and have a letter in me.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?