First of all, you need to decide what kind of research you are going to conduct, either quantitative or qualitative. Based on what I have read, it looks more like a qualitative study. If that is the case, you would like to conduct some kind of intenstive interview. If so, the questionnaire for intensive interview will have more open-ended questions and you might have to come out with new questions while you are conducting your interview.
If you decide to do a quantitative study, most questions included in your questionnaire will be close-ended questions. And you will need a large sample size (at least 50), utilizing a random selection process to ensure you to apply statistical techniques to analyze your data.
Having said that, I think you might want to do some literature review and see what other researcher approach this issue and hopefully, you might see the details of your questionnaire and get some more specific ideas.
Good luck, let me know what you think.