sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: Why is it so difficult to handle failure?
 sentence 2: Which is more difficult to handle: failure or success? sentence 1: How can I get more clients for my web development business?
 sentence 2: What is the best strategy for getting clients for web development business?
not same meaning
not same meaning
same meaning