sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: What is the importance of education to the United States and how are their views of education different from Denmark's?
 sentence 2: What is the importance of education to the United States and how are their views of education different from Germany's? sentence 1: What is the best approach to become better at C++?
 sentence 2: What is the best way to start learning c++?
not same meaning
not same meaning
same meaning