Answer:
I am the kind of nut that is empty at the center and has no shell.
You bind me and I walk. You loosen me and I stop. What am I?
I am a small paradise surrounded by dryness and heat.
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves every day. What am I?
Brown I am and much admired. Many horses have I tried. Tire a horse and worry a man, tell me this riddle if you can. What am I?
When is it bad luck to see a black cat?
What am I?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic