Why is a crossword puzzle like a quarrel?
What increases the more you share it with others?
What is always coming but never arrives?
With what do you fill a barrel to make it lighter than when it is empty?
What is it that we often return but never borrow?
What is full of holes and yet holds water?
What can be right but never wrong?
What can you hold without ever touching or using your hands?
What can't you see that is always before you?
What question can you never answer "yes" to?