In an all-Jewish school, a Russian man decided to disrupt a math class.
He stormed in and cried, "You Jews think you're so smart, try and answer this! There are seven trains going all around the country with sixteen cars on each train. There are thirty-three people on each car. How old am I?"
No one responds.
A boy in the back stands up and says, "48."
Amazed, the Russian says "Yes! How did you know?"
The boy replied, "There's a man in our village that's twenty-four and is only half meshugah."