So, there was this mathematician, physicist, and biologist who went into this building and counted to make sure it was empty, because it was set to be demolished. 

So they finish up the count and there is nobody inside. They go across the street and wait. After some time, two people enter. A few more minutes pass and three people exit.

The physicist says "We must have miscounted".

The biologist says "They must have reproduced when they were in there".

The mathematician says "All right, when one more person enters, the building will be empty.

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A young man hired by a supermarket reported for his first day of work. The manager greeted him with a warm handshake and a 

smile, gave him a broom and said, "Your first job will be to sweep out the store."

"But I'm a college graduate," the young man replied indignantly.

"Oh, I'm sorry. I didn't know that," said the manager. "Here, give me the broom - I'll show you how."

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Three graduates of business, marketing and physical education go on a camping trip. One day a grizzly bear attacks their camp. The marketing and business graduates try and come up with ideas to communicate with the bear or create a strategy to deal with it. They see the physical education graduate putting on her running shoes. They both tell her she cannot out run a bear. She tells them she does not need to out run the bear she only needs to out run one of them!

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A student at graduation is walking across the platform when he falls through a large gap in the wood. His mom, unperturbed, says to everyone sitting near her “its just a stage he is going through”.