What am I good at?
What do you do best? What do people admire about you? What skill has helped you most in your life? What comes easy for you?

What things do I like doing best?
What would you agree to do for free and at the same time that people will pay you to do?

What are my strengths, abilities, resources?
This is related to the previous questions. Focus on what you can do best.

What problem can I solve?
Is there a problem that I can solve? Can I make life easier for people? Can I make use of other people trash or waste product?

What can I improve on?
Can I make a process or product better, cheaper, faster?

Do I have a market?
Will I make a profit? Will people buy this product? Will they avail of my services?