"Quiz" monsters are designed after the creature they represent with elements of a quiz show. For example, "Quiz Monkey" is designed as a monkey dressed up as a quiz-show announcer.
Quizzes are a form of game or mind sport in which the players (as individuals or in teams) attempt to answer questions correctly.
"Quiz" cards tend to make the player answer a question or a riddle, and apply positive or negative effects based on whether the player is able to answer correctly or not. Although only a few "Quiz" monsters were revealed so far, their playing style seems to revolve around manipulating those "quizzes" so that the opponent can't answer them correctly, thereby locking the opponent's attacks. While the opponent can't harm the player, the player can keep increasing his own Life Points and damaging the opponent's with the "Quiz" Action Cards from the "Quiz Quest" and "Quiz Quest - Extra Stage" fields.