sentence 1: How do I know if I'm good?
 sentence 2: How do I know what I'm good at? sentence 1: What will happen if I stop eating added sugar for a year?
 sentence 2: What  reaction will happen if sugar is added to a petrol tank (bike)? sentence 1: What happens to an object if it reaches the speed of light?
 sentence 2: If in theory an object reached the speed of light what would happen to it? sentence 1: What is the best way to learn shell scripting?
 sentence 2: What is the easiest way to learn Shell Scripting?
not same meaning
not same meaning
same meaning
not same meaning