sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: Who writes the best class notes in IIT, Bombay?
 sentence 2: Which student of IIT Madras writes the best notes? sentence 1: What are the post study work options in the UK for an undergraduate international student?
 sentence 2: Will UK Open the Post Study visa for International Students?
not same meaning
not same meaning
same meaning