sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: What will be the effect of Donald Trump becoming the president of US on India?
 sentence 2: How will Donald Trump getting elected as the President of the United States affect the relations of the USA and India? sentence 1: How can I use Quora to learn English perfectly?
 sentence 2: Is it helpful for Chinese to learn English that surfing Quora?
not same meaning
same meaning
not same meaning