Oh, well I guess I should answer the original questions too then.

(SPOILER)
6. What Fal'Cie guards the Taijins Tower?
Dahaka

7. What are the names of the two sisters who make up Shiva?
Stiria and Nix

8. What is the name of Fang's ultimate attack?
Highwind

9. What enemy do you defeat for the Growth Egg?
Neochu

10. How many missions are in the game?
64