Answer:
Round as an apple, deep as a cup, and all the kings' horses can't fill it up. What is it?
Three little letters, a paradox to some. The worse that it is, the better it becomes.
What runs around all day. Then lies under the bed. With its tongue hanging out?
A mother had five boys Marco, Tucker, Webster and Thomas. Was the fifth boys name Frank, Evan or Alex?
This thing all things devours: Birds, beasts, trees, flowers; Gnaws iron, bites steel; Grinds hard stones to meal; Slays king, ruins town, And beats high mountains down.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?