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 every single question I ask on Quora suddenly being tagged as "needing improvement"?
 sentence 2: What happens to a Quora question noted as being in need of revision? sentence 1: What is the biggest irony of Gandhi?
 sentence 2: What is the biggest irony?
not same meaning
same meaning
not same meaning