Mystery

The genre of Mystery is fiction that focuses and surrounds itself around puzzles and clues that are followed and investigated by an investigator. The genre is broad but fits into a specific category because of a few key elements which are as follows:
KEY ELEMENTS:

PUZZLE/CLUES
STORY SURROUNDS INVESTIGATOR
STORY LACKS PARANORMAL ELEMENTS AND RELIES ON LOGIC
THE CRIME DETAILS ARE NOT IMPORTANT, THE FOCUS IS THE SLEUTH
LITTLE ATTENTION IS ON THE CRIMINAL ELEMENT
While I know this may not be the entire genre's elements, these are the keys to knowing if you have a mystery on your laptop. If you have written something from the detective's perspective with no psychics and the detective finds clues and follows them to the unknown killer. Then maybe, just maybe, you might have written a mystery. One of the key elements that take a mystery to a new genre would be a killer's perspective or a look into the killer's mind.
Keep in mind a genre can overlap and intertwine, but if the tone and elements are investigator based in your MS then you probably should query as a mystery.