Answer:
Which weighs more? A pound of iron or a pound of feathers?
Often found in doctor's offices and pirate flags
What is something yet nothing, but if you fill it up it will disappear?
What object has keys that open no locks, space but no room, and you can enter but not go in?
I occur twice in eternity. And I'm always within sight.
What do you called a sad coffee?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?