Tantei Gakuen Q, Hyouka Recommendations
Both series have high school detectives. They also have school settings.
both of them are around mysteries , they both differ at the base source , manga and an light novel and has the difference . But for an mystery fan this would be the most awesome anime of this year
Mystery, mystery, and mystery. These two series revolves around detective fiction and with a group of friends at school.
There is drama, comedy, and suspense. If you're looking for some brain twisters and plot thrillers, then these two series are something to keep an eye on.