sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: How many uber drivers have ratings of less than 4.75?
 sentence 2: What can I do as an Uber driver to earn a 5 star rating? sentence 1: What are some mind-blowing iphone gadgets stuffs that most people don't know about?
 sentence 2: What are some mind-blowing gadgets tools that most people don't know about?
not same meaning
not same meaning
not same meaning