 The Mortal Instruments (book series): Will Jace and clary get married?
 The Mortal Instruments (book series): What is the ship name for Mark Blackthorn and Kieran?

Please tell me if those questions are the same.
A: no

Was Korea ever part of China?
How was Korea able to resist China and remain a separate nation state throughout history given that it is so close geographically to the mighty nation?

Please tell me if those questions are the same.
A: no

Where is the centre of gravity?
What is centre of gravity?

Please tell me if those questions are the same.
A:
yes