Answer:
What’s full of holes but still holds water?
A tower at the root of all confusion.
What fastens two people yet touches only one?
They can be long or short; they can be grown or bought; they can be painted or left bare; they can be round or square.
The lunch destination of choice for teenagers and hospital employees.
Two little holes in the side of a hill. Just as you come to the cherry-red mill.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?