Teacher: "Class, in this final exam, everybody should get at least 75% marks."
Student: "We are all trying for 100% sir!"
Teacher: "Are you being serious?"
Student: "Well, no sir. But it was you who cracked a joke first."
If we are not to have a midnight snack, then why is there a light bulb in the refrigerator?
Did you hear about the guy that created the KNOCK KNOCK JOKE?
He won the NO-BELL prize.