The various "Quiz Panels" on the board of "Question Change".
"Quiz Panel" (クイズ・パネル Kuizu Paneru) is an archetype of cards used by Bob Banter in the Yu-Gi-Oh! GX anime. Whenever one is flipped face-up, the opponent must attempt to answer a question or do the activity written on the card, and if they fail they take effect damage. However, if they succeed, it's the player the one who takes damage.