Boy 1: "As long as you are in school, two things will always be your friends."
Boy 2: "Who are they?
Boy1: "Classwork and Homework!"
Mother: “Why are you home from school so early?”
Son: “I was the only one who could answer a question.”
Mother: “Oh, really? What was the question?”
Son: “Who threw the eraser at the principal.”
Why are there old dinosaur bones in the museum?
Because they can't afford new ones!
Son: "Excuse me daddy, but what is the twenty fifth letter of the alphabet?"
Son: "Because I need to know for my test tomorrow."