Polls are a great way to get quick feedback with questions related to the challenge. Polls can be used to define or segment your audience, to gather extra information on people's response to the challenge, or even to create a checklist of things to think about or include when proposing ideas.
You can add as many polls as you like to your challenge in the Challenge Creation wizard and see the results as people start to complete the poll.
Polls contain multiple (two or more) answers that users can choose. The results are displayed alongside the challenge in real time. Clicking a poll item will show a graphical view of the results and highlight the users' selection if they have completed it: