Is it possible to sort questions by "most viewed" or "least viewed"? If not can we get that?
I don't think you can do this directly from the site. In the search bar you can search for
views:500 and get all questions with at least that many views.
If you really want all the questions, sorted by views, try this query in the data explorer:
See also: Can we have a sort by view count?
This is kind of already implemented. If you have access to the 2k moderation tools, you get access to a list of most viewed questions. This is what it looks like now:
It doesn't have a list of least viewed questions, and it only shows 3 most viewed questions. If you'd like more info, check casey's Data Explorer link, which will list them by the number of views.