sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: How can I build an operating system?
 sentence 2: How can I create an operating system? sentence 1: English Grammar: Why is bra singular but panties plural?
 sentence 2: Why is 'bra' a singular and 'panties' a plural? sentence 1: Is there a way to alleviate the horrible nightmares I'm having on 30mg Prozac?
 sentence 2: I want to do many things, but I don't have patience to do them one by one. What should I do to overcome this problem? sentence 1: How do I get rid of a forehead scar?
 sentence 2: I have a little scar on my forehead, how do I get rid of it?
not same meaning
same meaning
same meaning
not same meaning
same meaning