A man would come home from work everyday. He lived at the 18th floor, but he would only take the elevator to the 10th, then walk the stairs the rest of the way. One day, it rained, and he took the elevator all the way up to 18th floor... (you are to find out why he didn't alway just take the elevator to 18th and why he did the day it rained)
Again you may yes or no questions if you need...
My uncle just told me this one last week!
The man is a little person. He can press the 1st floor button in the morning, but he cannot press the 18th floor button when he returns home. He can press the 14th floor button though. Because of this, he has to walk up to the 18th floor from the 14th floor in the evening.
He doesn’t have to do this on rainy days, because he can use his umbrella to press the 18th floor button.
On the final day of a philosophy class, all the students came in and sat down. The Professor brought forth a single chair, placed it where everyone could see it, and backed away. "For your final exam," he said, "I want you to write an essay explaining to me why this chair does not exist. Begin."
All of the students took a moment to reflect upon the question and then began furiously scribbling their answers. Well, all except one. One student thought for a brief moment, wrote something quickly on his piece of paper, then handed it in to the professor. He then left the class room, leaving the other students to work for hours upon their answers. That one student was the only person to get an 'A' on his paper.
What did that student write for his essay?