Interactive questions provide a great stimulus point when you're asking users to engage in your research.  They also provide an impetus for venture teams to get outside and interact with potential users and a starting point for conversations about the issue and the context surrounding the challenge itself.  For example, teams could create a poster with a question related to the problem statement and ask users to contribute opinions by sticking post its with their response on the poster. If an in person interactive question is not appropriate, then creating a short digital survey for users to respond to  can also be effective. In this case, using pictures, sliders, buttons and icons are a strong alternative to check boxes, text responses or other traditional techniques.