While a question scrolls on the screen, you have to choose the correct answer, by pressing the corresponding button. The person you face, holds up 5 fingers, which count down to zero after the question scrolls once. If you get one wrong, the person will laugh hysterically at you, but if you get it right, the person will look dumbfounded or straight-faced. Above the area where the question scrolls on the screen, is where there are empty-bars waiting to be filled. One question equals one bar filled.
Different people require different amounts of right answers to pass.
Also, each question is worth 500 points, and when you beat a person, you get 3000 to 9000 points. In order to win, you need to answer 4 consecutive questions right, or something like 2 correct, one wrong, and 3 correct will do. Well, if you get one wrong, each one will move you closer to the shark. It's not as hard as it seems. You need 8 points to pass.