A popular magazine actually had a contest for the best pun ever. The winner was as follows.
A group of brothers decides to start a cattle ranch. They ask their father what it should be called. The father suggests calling it the Focus Ranch, because that's where the sun's rays meet. (Sons raise meat.)
It was the winner because all three words got punned.
Well, since there was, at the time, fear that the Japs would invade the coast the town had installed a pole outside of City Hall with a lever that when pulled would blow up explosives placed in strategic places in order to combat the invasion.
One day one of the townspeople, Bill, is driving in front of city hall and sees a frog in the road. He glances at Nate's cage and sees that the it is open and immediately knows that it must be Nate. He swerves to avoid running over Nate and sees that he will collide with the pole that has the lever on it. So, Bill swerves back and...squish...Kills Nate.
The townspeople are despondent. They ask Bill how it happened and he explains the circumstances and finally says, it was better Nate than lever.
A cache of triangular sails made from animal skins was discovered. Although of different sizes they all were perfect 30-60-90 triangles. The sails were folded in such a way that indicated that the makers knew that by making the bottom edge of the sail twice as long as the hypotenuse would give this result. In honor of the ancient peoples rudimentary knowledge of trigonometry this has been dubbed the fur sail sine.