An recent Italian immigrant1 to New York wanted a job, but the foreman won't hire him until he passes a little math test. "Here's your first question," the foreman said. "Without using numbers, represent the number 9." "Without numbers?" the Italian says, "Dat is easy." And he proceeds2 to draw three trees. "What's this?" the boss asks. "Ave you got no brain? Tree and tree and tree make nine," says the Italian. "Fair enough," says the boss. "Here's your second question. Us...