Information they should know: All the lights are off, click red once. Light 2 is a 1 and light 7 is a 0, click red twice. Light 1 and 2 are both 1, click red 3 times. Light 1 and 7 are both 0, click red 4 times. Lights 1,2,3 are 1, click red 5 times. Lights 1,2,3,4 are 1, click red 6 times. More than 3 lights are off, click red 7 times. More than 5 lights are on, click red 8 times. All the lights are on, click red 9 times. None of above apply, click red 10 times.