What is the STRONGEST letter in the alphabet? Pâ€¦ Even Superman Canâ€™t Hold It!! What is a tornado? Mother nature doing the twist! A substitute teacher was trying to make use of her psychology background. She began her class by saying, "Everyone who thinks you're stupid, please stand up." Right away, Little Johnny stood up. The teacher said, "Why do you think you're stupid, Little Johnny?" "I donâ€™t, ma'am, but I hate to see you standing there all by yourself!" What do you call 10 rabbits walking backwards? ... A receding hair line. There are 10 cats in a basket and one cat jumps out. How many are left? None. They are all copycats! What's a baby's motto? If at first you don't succeed - cry, cry again!