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 a good thing to do when you argue badly with a good friend?
 sentence 2: How do greenhouse gases effect the Earth's climate? sentence 1: What is the best music to listen to while writing academic papers or a thesis?
 sentence 2: What's great music to listen to while reading? sentence 1: How does I develop self confidence?
 sentence 2: How do I develop healthy self-esteem and confidence?
not same meaning
not same meaning
not same meaning
same meaning