Answer:
In your fire you hear me scream creaking and whining yet I am dead before you lay me in your hearth.
I run up and down the stairs without moving. What am I?
I jump when I walk and sit when I stand. What am I?
I am a chair that can move. What am I?
You buy me to eat, but never eat me. What am I?
It weighs next to nothing but no one can hold it for long. What is it?