sentence 1: How do I build my profile for top B-schools?
 sentence 2: How do I build my profile for Harvard, Wharton, INSEAD etc.? sentence 1: What is a DVDScr - XviD - 1CDRip?
 sentence 2: How do you convert XviD files to .MP4? sentence 1: How do you make your nose smaller?
 sentence 2: How can I make my nose smaller?
same meaning
not same meaning
same meaning