Those questions are philosophical, and can't be answered seriously without writing chapters and chapters for every 2 or 3 questions. That is how I know no one will ever get the correct answer on these forums.
Not sure how much you like reading, but there is a book called Sophie's World, a novel about The History Of Philosophy. Jostein Gaarder was the writer. It was an international bestseller, and I would say, the best philosophical book to read for anyone that does not know where to start.
---
As for Dunist's a group of students in this town, become a Dunist, every year because a Social Studies teacher created the Dunist Thought. It was even named after him. These people learn to think differently, compared to everyone else. They don't want bu!!shi,$ if you need to say to give them something, you do it, and just leave, they don't have time to say thankyou or to talk about anything related to conventional teachings, or ideas school's put into a persons mind. I cannot fully understand them, but truth be it, they want nothing to do with long procedures or formal conversations, they are "lazy" or people who want things done or said, right to the point. They think it spares time for things far more important. I might just have to agree with that.
What if everyone went around saying what they thought, and doing as they please, with no one to say "Why!"....example of what occurred a couple of years ago...1 new student went to that school, had Mr.Dun in school, and Mr.Dun as usual said, he loves things right to the point. Well this kid thought farther, he thought, a people should just say what they mean, and get what they want, if they ask for it, no shame no game. That was the thing, this person was not an average Joe, he was a person not afraid of what others though.
This non-average Joe, loved philosophy, and changed the way people thought in that school. He said, if a guys likes a guy, forget all the, "meet them first"..."talk to them" and "go out with them part" ....he thought it should be more of a, "meet the person, and Literally" ask them type of thing. I can still remember when he came to the highschool as a freshman, he was probably one of the most viewed people in the halls...dressing as he pleased, and stopping by EVERY hot chick he saw. Making an introduction, and minutes later holding hands with the girl, and even kissing or making out with her. He does 2 things, he acts like a PUA or he merely asks if they want to hold hands, while taking her hand...or if she wants a kiss while he is already headed for it...there were times he did get rejected and he merely walked right out of the reach of one girl, behind to another...and started all over again.
That guy was a true Dunist, a person who does things right to the point, and then walks away. He did, get what he wanted, and he always walked away. If a chick said "oh he is going to pick up you up" to a chick he was doing it to, he would say just go away, we don't want you here or something like that, he did not waste time, and did not care what others said.
Dunists are not a big group of people, they are not even documented, they are just a group of people that are "created' after having been taught by this one teacher in that community.