Unity of the Elements

1) For example, he wants 100,000 gold from me. He gives me a quest. But I already have that amount. It would be possible to immediately display a message like: "Give this beggar 100,000 or not?" and then credit the quest.
2) Go ahead and do it.
3) I didn't use the Mentor. Although I should have. And could you apply "Dominate" to the boss? Also, would wearing the Mask of Justice on the hero before the final battle have any effect? I just thought about it.
4) Yes, I created 5 Titans this way, but then I found all 8 dragon artifacts, and the need for this disappeared on its own. Of course, I could have made a hundred, but that wouldn't be interesting.
5) I think I completed the task, and they gave me 9 Titans.

Added 4 minutes ago
Would the "Razor Sword" or whatever it's called also kill the boss with one hit???

Would the "Razor Sword" or whatever it's called also kill the boss with one hit???