To update a 'man' page in Unix you would need permission to write to the resulting formatted directory and the original NROFF source that comprised the original man page. Once you place or modify the source the next time someone runs the 'man' command it should reformat it.
Man (or manual) pages
Your Spaceflight Manual has 120 pages.
The Phishing Manual has 320 pages.
The Daredevil's Manual has 176 pages.
The Wu-Tang Manual has 243 pages.
The Complete Manual of Suicide has 198 pages.
The MLA Style Manual has 336 pages.
The Bluejacket's Manual typically has around 600-800 pages, depending on the edition and publication year.
Nicolas Sarkozy Voodoo Manual has 56 pages.
Yes and no. Many web servers are based on a Unix or Linux system, but "Unix" itself can't be used to create web pages; it's an operating system. Web pages are created with an editor, which might be a fancy graphical editor like DreamWeaver or a plain old text editor like vi or the DOS EDIT program.
This is wholly dependent on the format in which the manual is presented and the model of iPod. As an example, the manual for an iPod Touch, in PDF format, contains 230 pages.
Depends on the operating system. In UNIX it's ncurses,see the manual.