What has surprised you about user behaviour?

In what ways are you resourceful?

Who needs what you're making?

What's the biggest mistake you have made?

Are you open to changing your idea?

What are you going to do next?

Why will you succeed?

Will your team stick at this?

What obstacles will you face and how will you overcome them?

How is your product different?

What's the conversion rate?

Why isn't someone already doing this?

What is your distribution strategy?

What have you learned so far from working on your product?

Why do the reluctant users hold back?

What, exactly, makes you different from existing options?

How much money do you spend per month?

What's new about what you make?

Why did your team get together?

What are the key things about your field that outsiders don't understand?

How much money could you make per year?

What makes new users try you?

How much does customer acquisition cost?

How many users are paying?

Who are your competitors, and who might become competitors? Who do you fear most?

How long can you go before funding?

Where do new users come from?

What domain expertise do you have?

How many users do you have?

What do you understand about your business that other companies in it just don't get?

Who would you hire or how would you add to your team?

Why did you pick this idea to work on?

How big an opportunity is there?

What competition do you fear most?

How are you understanding customer needs?

What is your burn rate?

What do you understand that others don't?

Six months from now, what's going to be your biggest problem?

What are the top things users want?

If your startup succeeds, what additional areas might you be able to expand into?

Do you have a demo?

Who is going to be your first paying customer?

Who would be your next hire?

What do you understand about your users?

What is the next step with the product evolution?

What is your user growth rate?

How are you meeting customers?

What is your growth like?