Professor: Do you know the difference between ammonia and pneumonia?
Student: Sure. One comes in bottles and the other in chests.
A famous scientist was on his way to yet another lecture when his chauffeur suggested an idea. “Hey, boss,” he said. “I’ve heard your speech so many times, I bet I could deliver it and give you the night off.”
“Sounds great,” the scientist said.
When they got to the auditorium, the scientist put on the chauffeur’s hat and settled into the back row. The chauffeur walked to the lectern and delivered the speech. Afterward he asked if there were any questions.
“Yes,” said one professor. Then he launched into a highly technical question.
The chauffeur was panic-stricken for a moment, but quickly recovered. “That’s an easy one,” he replied. “It’s so easy, I’m going to let my chauffeur answer it.”
Two university students had an exam coming up but they opted to party instead, and missed the test. “Our car broke down due to a flat tyre,” they told the professor earnestly. “Can we write the exam tomorrow?” The professor agreed to give them a makeup test the next day.
Both boys crammed all night until they were sure they knew just about everything. Arriving the next morning, each was told to go to a separate classroom to take the exam. They shrugged and complied. As they sat down, they read the first question: “For 5 points, explain the contents of an atom.” This is going to be a piece of cake! thought each boy, answering the question with ease.
Then, the test continued. “For 95 points, tell me which tyre it was.”