Answer:
What goes up and down stairs without moving?
I am lighter than air, but a hundred people cannot lift me. Careful, I am fragile. What am I?
I am tomorrow's yesterday and yesterday's tomorrow. What am I?
A thousand wheels but move I do not. Call me what I am call me a lot.
I can be repeated but rarely in the same way. I can't be changed but can be rewritten. I can be passed down, but should not be forgotten. What am I?
A little house full of meat, no door to go in and eat.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic