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."

Can I take his place?
An attorney telephoned the governor just after midnight, insisting that he talk to him regarding a matter of utmost urgency.

An aide eventually agreed to wake up the governor.

"So, what is it?" grumbled the governor.

"Judge Garber has just died" said the attorney, "and I want to take his place."

The governor replied: "Well, it's OK with me if it's OK with the undertaker."