What tree that definitely grows does not have a shadow and does not grow fruit?
What is made of wood, but can’t be sawed?
What has a ring, but no finger?
What can never be put in a saucepan?
What can one not keep, two hold, and three destroy?
A truck driver is going opposite traffic on a one-way street. A police officer sees him but doesn’t stop him. Why didn’t the police officer stop him?
What two things can always see what the other sees, but can never see each other?
What gets colder as it warms up?
How many seconds are there in one year?
A girl was ten on her last birthday, and will be twelve on her next birthday. How is this possible?