Non-Indicative Name/Fan Works

If mowing the lawn was all that Cloud did in Cloud Mows the Lawn, we'd all be much better off.
My Immortal hardly features any immortality and few would want to claim ownership of it. It also doesn't feature the eponymous Evanescence song, though the band is mentioned.
Pretty Cure Perfume Preppy doesn't feature any actual preps.
There is no war in The Last War, unless you count the one between the author and canon.
The three stories of the Elemental Chess Trilogy are this - they're actually Terminology Titles, so they make a kind of sense in context, but still have no real bearing on the stories in question.