sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: Reading somelses WhatsApp messages?
 sentence 2: Can I read my Whatsapp messages from another phone? sentence 1: What came before the expansion of space and time?
 sentence 2: What existed in the space before Big Bang? sentence 1: What are the best ways to advertise a blog?
 sentence 2: What is the best way to advertise blogs?
not same meaning
not same meaning
same meaning
same meaning