Ask HN: Best method to build an interactive questionnaire?

Hi HN, I think I'm having a slow thinking day for some reason as I'm a bit stumped on a problem. I want to build a simple interactive risk questionnaire whichs bring people to different content depending on how they answer the questions. E.g "Do you lock your doors at night?" If they answer "Yes" they get brought to the next question, if they answer "No" they get brought to a page or something giving them advice on proper door security. It will probably involve a number of steps like this. Can anyone recommend a good way of doing this? (Ideally simple, available online etc) Thanks, SF