Teacher: "What's the difference between 'He cleans the plate' and 'The plate is cleaned by him'?"

Student: "In first sentence he is not married, but in second sentence he is married!"

Teacher: "Name the nation that people dislike the most?"

Little Johnny: "That's easy, it's the 'Exami-nation'!"

Dad was angry when he saw that his son scored a zero in math.

"Son, can you explain this to me?"

"Well dad, the teacher didn't have any stars left to give me, so she gave me a moon!"

"Dad, I want to become a politician," said Jim.

His father asked, "And what are you doing to become one?"

"Nothing, dad."

"Good, you're halfway there then."