Get smart with two tremendous workouts that really train the brain to think sharp. With detectives such as Sherlock Holmes offering a cool series of puzzles, it's no mystery why these whodunits require strong powers of deduction. Join sleuth Thomas P. Stanwick as he examines "The Case of the Dubious Drowning," and Inspector Forsooth as he goes on "A Trail of Two Cities." By the time you're done, you'll know what kind of detective you truly are. Are...