How do you beat stage 8 on questionaut

You have to answer questions correctly to get bubbles (fuel). Correct answers get one bubble and incorrect answers lose one. You need 5 bubbles to advance to the next level.
To start questions: Click to remove the red cover, and hang it on the other hook. Take the faucet wheel and place it on the spigot, turning it to stop the flow of words. Click on either character.