Honestly, I don't read that much. I have read some mysteries in Language Arts. Of all of the stories I read, I liked "The Cask of Amantillado." I liked this story the most, because I thought it was funny how one guy got the other guy drunk, and built a wall around him.
It was kind of a weird story, but I like weird stories. I think that a good starter for a mystery would be about a woman that had a garden, and every day one of her plants would disappear out of her garden. Then she set up a security camera but whoever was doing it never came again.