Which are the world's best literature libraries?
Which are the best literature festivals around the world?
As @muru said in a comment, any questions that is open-ended and opinion-based like What are the best X? are off-topic.
What impacts Bob Dylan have made in American Song culture that he was awarded Nobel literature price?
This question is probably best asked in Music Fans, since it's about Dylan's impact on song. If the question were about his place in American literature, that would make it on-topic:
How have Bob Dylan's lyrics affected and been affected by contemporary American poetry? Is his work considered and discussed as part of the American poetic tradition in the same way as that of, say, John Ashbery or Sharon Olds, or other currently active poets?
At this point, though, the question isn't about the prize but about his work. A question like:
Does Bob Dylan deserve the Nobel?
would likely be closed as primarily opinion-based. The citation from the Nobel Academy lays out the reasons he was considered award-worthy, and arguing whether or not those reasons are valid is pointless; the award is a done deal.
Is there any rare literature work that is available in selected libraries only?
I would probably wager that this would get a lot of downvotes and perhaps even close votes as unclear what you're asking:
- Many libraries have rare book rooms with manuscripts from authors that contain unpublished works. For example, F. Scott Fitzgerald's short story "Temperature" languished at Princeton for decades; a similar fate befell Edith Wharton's "Field of Honor" at Yale. Of course those are rare literature works unavailable elsewhere until they are discovered and published.
- Rare book rooms are also repositories of medieval books, transcribed and illuminated by hand. Each copy is unique as books weren't mass-produced but bore the imprint of the scribe who made the copy. Every medieval manuscript, even if it is a manuscript of a work since printed and widely available, is a rare work of literature.
- Even mass-produced books go out of print, thereby becoming hard to find except in research libraries.
- Some books even get recalled by publishers a few months after publication, meaning that a library is probably the only place they can be seen.
So what do you mean by "rare" works and "selected" libraries? What exactly are you asking?
What controversies happened during book launch of author named X?
How was this book received when it first appeared? is on-topic. So this question is probably the only on-topic one of those in your list.