sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: What are the best places to visit in Kanhangad, Kerala?
 sentence 2: What can be the medium budget to visit best places in Kerala for three members (2-3 days)? sentence 1: Why did you decide not to have kids?
 sentence 2: Why have you decided not to have kids?
not same meaning
same meaning
same meaning