So, to follow this data blindly would be idiotic. We would never pass on an entrepreneur just because they are “too old,” have never started a business or don’t have a specific team composition. We don’t do this because we are good guys; we do this because it’s good business. We generally look for “founder-market fit” – founders who personify their product, business and ultimately their company. In the early days, this usually means building something for themselves or starting a company in a sector where they have deep domain expertise (or both).
Ask yourself:
“If some genius out there will create some solution just for you,
what that would be?”
Brian Chesky, founder of Airbnb, started the service in order to solve his issue i.e.he can not pay rent though he has empty room in his apartment
The best issues you should take on is something you are personally struggling with
Timing is the biggest key for success
http://www.ted.com/talks/bill_gross_the_single_biggest_reason_why_startups_succeed#t-216631
he single biggest reason why startups succeed