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 will be the world after 100 years?
 sentence 2: What will it be like after a 100 years from now? sentence 1: What are the differences between Java, Core Java, Advanced Java and J2EE?
 sentence 2: What is difference between core java and j2ee? sentence 1: How many hours does a doctor work a typical week?
 sentence 2: How many hours a day does a doctor work typically?
same meaning
same meaning
not same meaning
not same meaning