sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: Which car colour to choose? Pearl white or premium silver?
 sentence 2: Why are pearl white cars trendy? sentence 1: I want to confess my love towards him. Is this the right moment?
 sentence 2: When is the right time to confess love to someone?
not same meaning
not same meaning
not same meaning