Answer:
It is everything to someone, and nothing to everyone else. What is it?
Both a currency and an antlered male. What is it?
What kind of a nut has a hole?
What doesn't exist, but has a name?
There is a kind of fish that can never swim. What is that?
Why did the stadium get so hot after the game?
Funny
Animal
Difficult
Easy
Food
Kids
Logic
What am I?