A title should be intriguing... create a little bit of mystery and stand out. Ray Bradbury can title a story "The Lake" because everyone knows who Ray Bradbury is. Think of it like your first line... grab someone's attention and stand out.
Ray Bradbury used similar titles before anyone except his mother knew who he was. His very first sale had the title "Homecoming", a plain title that's been attached to quite a few short stories.
I like a good, intriguing title, but I think simple titles sell very well, and sometimes better than fancier titles.
I sold the first short story I wrote to a national magazine. It paid $450, and that was a long time ago. That $450 was equivalent to about fifteen hundred bucks today. The title was "The Ordeal". Simple, and it had been used before. It's also been used since.
My first thousand dollar sale was for a short story called "The Parachute". That story also sold to Cricket for another $350, and has sold to four other magazines since. Almost all my short stories have simple, Ray Bradbury like titles, and I can't say anyone has ever complained.
I think the most complicated title I've ever used on a story that sold was one to Ellery Queen's Mystery Magazine. It was called "A few Miles South of Nowhere".
Other than this, pretty much every story I've sold has had a simple one or two word title, though I suppose even simply titles can be intriguing. One of my most popular stories was called "Wild Strawberries", which also sold to Ellery Queen. I cinsidere dit a plain, simple title, but I've had quite a few readers tell me they loved the title because it worked well with the story, but gave nothing away.