I noticed that there is a small inconsistency in the wording on http://ux.stackexchange.com/privileges (see annotated screenshot below). It appears also on all other StackExchange sites.
In the right bar listing all privileges it says 'edit questions and answers'. When clicking the link the corresponding article also has this headline but the first paragraph starts with 'What is edit everything'. I assume the name of this used to be 'edit everything' and changed later. I found it confusing for a second but recovered quickly :-)
I don't know what effort it takes to change this and if it's worthwhile at all.