A zookeeper wanted to get some extra animals for his zoo, so he decided to compose a letter. The only problem was that he didn't know the plural of "mongoose."

He started the letter: "To whom it may concern, I need two mongeese."

No, that wouldn't work, so he tried again: "To whom it may concern, I need two mongooses." Is that right?

Finally, he got an idea: "To whom it may concern, I need a mongoose, and while you're at it, send me another one."