The students have to ask a question that suits the answer. To correct it: if the question fits, I read the answer and give their team a point by clicking on the number in the corresponding scoreboard. If they come up with a different question that doesn't fit the one in the square, I simply answer it and they realize it doesn't suit the question. In this case, I click on the number in the opponent's score to give them a point. I hope your students enjoy the game. Happy teaching!