This is a whole class fluency and vocabulary game. Every students gets a card that contains a question and an answer to another cards question. To begin the game, start with any question (the cards come full circle no matter where you begin). Whoever has the correct answer, reads it saying "I have ____", then that student reads their question, "Who has ___?" The game continues until all cards are shared.
My classes love friendly competition so I time how long it takes to complete the circle. The class with the fastest time usually gets an extra credit point on their next exam or quiz.