How do you beat stage 7 on questionaut

You have to answer at least 5 questions correctly, without missing any, to complete each of the 8 stages by filling the balloon with bubbles. A correct answer gives you another bubble. An incorrect answer will take away a bubble.

To start the stage:
You click the light bulb to screw it in, get the battery, and put it in the battery slot on the left hand side. Flip the switch at left that leaves only the one bulb on. Then a little man comes out and you click on him for the questions.