Answer:
What is more useful when it is broken?
I have one, you have one. If you remove the first letter, a bit remains. If you remove the second, bit still remains. If you remove the third, it still remains.
This guy crossed a road and everyone wants an explanation.
What has four legs, but can't walk?
These suck.
What is lighter than what it is made of?
Funny
Animal
Difficult
Easy
Food
Kids
Logic
What am I?