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 do I improve diet to gain weight? What are other options to gain weight?
 sentence 2: Which is the best food to gain weight? sentence 1: Have you experienced any embarrassing moments during public speaking?
 sentence 2: What is the most embarrassing moment you have experienced in public (strangers)?
same meaning
same meaning
not same meaning