Want to feel like Sherlock Holmes?  Solve some mystery puzzles with your classmates.  Ask yes/no questions to reveal details.  Then solve the mystery by telling the story of why the man is hiding in the sunlight, for example.  These puzzles are real-world possible but carefully crafted for fun, I mean, skills-building.  Along the way, we'll practice some real critical thinking skills, including careful reasoning (logical deduction).  You'll need to pay close attention to your classmates' questions and work as a team to solve these puzzles.