sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: Is a 13 cm penis considered small?
 sentence 2: I am 20 and my penis is 13 cm. is it considered small and will it grow bigger? sentence 1: Does Quora needs any updates?
 sentence 2: What updates do you think Quora needs?
not same meaning
same meaning
not same meaning