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: How can I improve my vocabulary?
 sentence 2: How do I expand my vocabulary? sentence 1: What should I do if I can't stop thinking about my ex?
 sentence 2: How can I stop thinking about my ex? sentence 1: Register ecommerce website?
 sentence 2: What would you do if you encountered an opponent who happened to be your best friend in the battlefield, killing your comrades?
same meaning
same meaning
not same meaning
not same meaning