Question

Hello, I would know how to get one of my quizz become a Featured Quizz. I don't know how to do it and I don't find answers on internet. I wish to know too how can we integrate a picture to a quizz. Like put a image in background and when you put the right answers, the answer show on the background image. I saw a lot of quizz do this and every time I was thinking " how can we do that ?" And I never get the answer. Can you please help me ? You can also recommand me a video to check to get my answers. It would be very nice from your part. Thanks !