Subject, Skills, and Grade Level
Deduction, how to be competitive while working together, note-taking, and some math. Adjustable difficulty for all ages.

Time & Players
10-40 minutes, depending on what version is played and how the clues are handled. Ideal is 4 players, but can handle 3-7.

Rules, Tools, & Assessment
Rotating GM, though one version has a fixed GM. Writing implement, department sheets, and handful of tokens for points. D20 is optional.