sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: What is the funniest joke you ever heard?
 sentence 2: Tell a joke that the funniest you have heard? sentence 1: Has Wicca/witchcraft/witch magic been scientifically tested?
 sentence 2: Has a scientific theory been recently disproved?
not same meaning
same meaning
not same meaning