Noggin Workshop IQ Squares challenges players to think outside the box to solve the riddle inside of the box/square. It can be a solitaire game or played with others. When playing with others, the players race to see which player can solve the riddle first, which is actually a rebus puzzle. Play continues until a set number of cards are won by solving the rebus puzzle first. The goal is to solve as many puzzles as possible without looking at the answer.