Cut out the questions and divide the class into an even number of groups. I usually do 4 groups of 6 students for my classes of 24. Then I make 6 students form a circle - those students get a question! Then 6 students form an outer circle around them and have to rotate in clock-wise fashion answering the questions that the stationary inner circle asks. This is repeated in as many inner/outer circles as you need in your class - with my 24, I usually have 2 inner/outer circles running at once.