Five famous novels that have huge mistakes

Jeff Somers is the author of the Avery Cates series, The Ustari Cycle, Lifers, and Chum (among many other books) and numerous short stories.

At the B&N Reads blog he tagged five famous books that contain huge mistakes, including:
The Big Sleep, by Raymond Chandler

Chandler’s classic hardboiled detective novel—the gold standard for stories of world-weary private investigators—has a plot so