According to Forbes, here are some common pitch questions (some slightly modified to our purpose).

1. How big is the market opportunity?
2. Who exactly is your best customer / client?
3. Why is this the right time for this product or service?
4. How much feedback have you received so far?
5. Why are you the right person to be on to achieve this?
6. What motivates you?
7. Who are your competitors?
8. What are your strengths and advantages over your competitors?
9. How do your features differ? How do you better solve the problem now than others?
10. How much is your budget?
11. How long will it take to become self-sustainable or profitable?
12. What is your timetable / what are your milestones?
13. What are the biggest risks to my investment?
14. What is your plan B if the current plan cannot go as proceeded?
15. How will scaling impact your efforts?
16. What unique features are you working on?