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 very homely young woman made an appointment with a psychiatrist...
A very homely young woman made an appointment with a psychiatrist. She walked into his office and said, "Doctor, I'm so depressed and lonely.I don't have any friends, no man will come near me, and everybody laughs at me. Can you help me accept my ugliness?""I'm sure I can," the psychiatrist replied. "Just go over and lie face down on that couch."