sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: Can I get cash back with a credit card? If so, how?
 sentence 2: How do you get cash back from a credit card? sentence 1: Optics: How are bones translucent to infrared light?
 sentence 2: How would it be possible to double the speed of light in a hollow optical fiber? sentence 1: How do you find a cook or a maid in Bangalore and what are the problems faced in the hiring process?
 sentence 2: What’s the biggest annoyance for those who hire maids?
not same meaning
same meaning
not same meaning
not same meaning