O.k., said the professor, let’s try number three. Two trucks, each filled with pumpkin pies, are going to the Whipped Cream Factory. The first truck leaves fifteen minutes before the second truck and drives at a speed of forty-five miles per hour. The second truck drives at fifty-five miles per hour. There is a donkey in the back of each truck. The donkey in the first truck can eat seventeen pumpkin pies in an hour, and the donkey in the second truck can eat twenty-one pies in an hour…

There are three bridges, the first at five miles, the second at ten, and the third at fifteen. Both trucks can travel only twenty miles per hour on the bridges. Each bridge is a quarter mile long. O.k., the question is… at the moment when the second truck overtakes the first, which donkey will have eaten more pumpkin pie? Who would like to give this a shot?… How about you in the front row, the one with the boxing-glove nose… Me? said Blurtso. Yes, said the professor, which donkey will have eaten more pumpkin pie? Neither, said Blurtso. Neither? said the professor. They will have both eaten the same. The same? said the professor. Yes, said Blurtso, each donkey will have eaten as much pumpkin pie as he could.