A horrible curse
An old man goes to the Wizard to ask him if he can remove a "Curse" he has been living with for the last 40 years.The Wizard says "maybe, but you will have to tell me the exact words that were used to put the curse on you."The old man says without hesitation"I now pronounce you man and wife".

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."