Retelling an Old But Good Joke
Polly Dent used to live at 600 Euclid Avenue.
Now she lives at 200 Euclid Avenue.
So, on the average,
Polly has lived at 400 Euclid Avenue.
Note: This was the first act of humor included on this website four years ago....so browse the Archives....four years of mathematical groaners waiting for you!