Asking cards (puzzle)

This game will test your knowledge of things you don't think about every day or just don't care about, so prepare your uncle google. A normal puzzle game in which you have a stack of cards and have to match them to the right places, these places are arranged in a grid marked with letters and numbers, for example A1, B5, C2. Clicking on these places opens a prompt with a question, the answer to which is a number greater than 0. Each card is signed with the same number as the answers to different places. When you've figured the question out, all you have to do is take a card that is signed with the answer to the question, and put it on the place where the question was. If your answer was correct, the card will remain on the given place.