Deduction begins with a single “Why?”

1. First, read the problem and imagine the mysterious situation.
2. If you are playing together, choose one person to host. Everyone else asks questions that can be answered with “yes” or “no.”
3. If you get stuck, take hints one at a time. Once you’ve arrived at a satisfying deduction, read the truth.

The host should read the solution and suggested Q&A first. You can also enjoy the puzzles alone with the hints.