Last night I took part in a quiz night, and my team won first prize. The quiz consisted of three rounds: Round 1 was 20 easy questions worth 1 point each; Round 2 was 20 medium questions worth 2 points each; Round 3 was 20 hard questions worth 5 points each. Our winning score was 138 points, having answered just nine questions incorrectly. The runners-up were annoyed because they had fewer incorrect answers, but fortunately for us (although a little embarrassing) we had more incorrect answers in Round 1 (the easy questions) than in either of the other two rounds.