Answer:
What has six faces and twenty-one eyes?
Who is he that runs without a leg. And his house on his back?
Die without me, never thank me. Walk right through me, never feel me. Always watching, never speaking. Always lurking, never seen.
Something wholly unreal, yet seems real to I. Think my friend, tell me where does it lie?
What is it that has four legs, one head, and a foot?
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?