Here are some randomly selected joke topics beginning with the letter 'T'
Teachers
Old teachers never die, they just grade away.
Teachers
Teacher: Billy, why have you not given me your homework?
Billy: I made it into a paper aeroplane and someone hijacked it.
Teddy bear
What do you call a teddy bear who has seen a ghost?
Haunted.
Tears
Why did the jeans burst into tears?
They felt blue.
Teachers
Old teachers never die. They just lose their class.
Teacher
"What do you do?" a man asked a pretty girl at a party. "I'm an infant teacher."
"Good gracious! l thought you were at least 26."
Teachers
In school I was the teacher's pet.
She couldn't afford a dog.
Teachers
What is the difference between a locomotive engineer and a teacher?
One minds the train, the other trains the mind.
Teachers
Where do mad teachers go to get trained?
Looney-versity.