sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: What's the difference between a programming language and a scripting language?
 sentence 2: What is the difference between scripting language, programming language and network protocol? sentence 1: Do you think Indian education system is good?
 sentence 2: Do you think that the Indian education system is perfect? Why or why not?
not same meaning
same meaning
not same meaning