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 the best online resource for learning the most about real estate?
 sentence 2: What are the best online resources to learn about real estate development? sentence 1: How do you tell if you have a bad inner tie rod?
 sentence 2: What are the symptoms of a broken tie rod?
same meaning
same meaning
not same meaning