Duel was a game show on ABC that ran for 2 seasons, with only 18 episodes. Ashlee Register won nearly $1,800,000 on the show, making her the highest-winning female game show contestant in television history.

Ashlee Register was a nurse from Florida, when she made her memorable appearance on the game show. She won the grand prize by answering correctly the final nail-biting question. That final question being: “What weighs more; a gallon of water, a gallon of crude oil, a gallon of vegetable oil, or they all weigh the same?”. The answer was a gallon of water. She beat out a used car salesman to win the grand prize!