Answer:
I run up and down the stairs without moving. What am I?
A single syllable do I claim black was my most famous name; Fetal to mortals here below thousands have I slain in a single blow.
I'm simple for a few people, but hard for them to hear. I live inside of secrets and bring people's worst fears. What am I?
You seek me out when your hunger's ripe. I sit on four legs and smoke a pipe.
I have hands but do not hold, teeth but do not bite. Feet I have but they are cold, eyes I have but without sight. What am I?
I flow from the Homerβs mouth when he sees doughnuts.