I like A Simple Misunderstanding for a title, it's nice and simple and... just simple. That's my favourite type of title, i also like simple titles that have a big meaning, analysis behind it that will become clear to you at the end of the story/ff/novel/poem etc., and titles that have to do with the storyline/s in the book, eg. In The Pact by Jodi Picoult, obviously the suicide pact between Emily and Chris, but there are also other little pacts that contribute, for example the pact of friendship between the Hartes and Golds.
What I find really clever is working the title into the story somehow, like make it a quotation, and make the reader question if the title only refers to the one thing, for example (and I'm only using Jodi's books because I'm reading them right now ) in My Sister's Keeper, the well used quote from Jesse: "Who am I, My Sister's Keeper?". But My Sister's Keeper refers to Anna being the only one who can keep Kate alive, but you know, the quote kind of makes you think.
I find that when I want to start working on a story, I have to give it a title, because a Title, to me, is like a place where I can extract a story from. Give me any title and I can analyse it and write a 500 paged novel centered and based around the title. That's a good writers block therapy...