A linguistics professor was lecturing to his class one day. "In English," he said, "A double negative forms a positive. In some languages, though, such as Russian, a double negative is still a negative. However, there is no language wherein a double positive can form a negative." A voice from the back of the room piped up, "Yeah, right."

Three men were using the urinals in a public restroom in DC. The first man finished relieving himself, zipped up, strolled to the sinks and proceeded to wash his hands, using plenty of soap and water and doing a splendidly thorough job. As he was drying his hands (with lots of paper towels), he loftily announced to no one in particular "At Harvard, I learned to be clean and sanitary."  The second gent zipped up, marched briskly to the sinks, and scrubbed his hands with much less soap and water than the first man, doing a splendidly thorough job nonetheless. As he was drying his hands ... read more

Teacher: Why are you doing your multiplication on the floor? Student: You told me not to use tables.

How many schoolteachers does it take to change a light bulb? None. Anything not completed during the lesson is added to the homework.

TEACHER : What is further away, Australia or the Moon? Pupil : Australia, you can see the Moon at night.