A lecture about English
A linguistics professor was lecturing to his English 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."

A guy was driving home one evening...
A guy was driving home one evening when he suddenly realizes that it is his daughter's birthday and that he hasn't bought her anything. Out the corner of his eye he sees a shopping mall. Knowing it was "now or never", he pulls his car through three lanes of traffic, finds a parking bay and runs into the mall. After a frantic search he finds a toy store, goes inside and attracts the attention of a shop assistant. When asked what he would like, he simply says "a Barbie doll". The shop assistant looks at him in the particularly condescending manner that only shop assistants can muster up and asks "Which Barbie would that be, sir?" The man looks surprised so the assistant continues "We have Barbie Goes to the Gym for $19.95, Barbie Goes to the Ball for $19.95, Barbie Goes Shopping for $19.95, Barbie dates Badd Teddy for $19.95, Barbie Goes to the Beach for $19.95, Barbie Goes Night Clubbing for $19.95, Cyber Barbie for $19.95 and Divorced Barbie for $265.00" The man can't help himself and asks "why is Divorced Barbie $265.00 when all the other Barbies are selling for $19.95?" "That's obvious!" says the assistant, "Divorced Barbie comes with Ken's house, Ken's car, Ken's furniture ....