Answer:
What doesn't exist, but has a name?
People buy me to eat but never eat me
What's funny about 3 helium atoms?
What is the difference between one yard and two yards?
What is the only animal without the ability to fly but still does?
You throw me out when you use me and take me in when you are done.
Funny
Animal
Difficult
Easy
Food
Kids
Logic
What am I?