Dear Cathy, Have you seen the Savitsky cats? How did they train them to do those tricks? — Elizabeth, Garden City, New York Dear Elizabeth, Yes – the Savitsky Cats, the Ukrainian mother/daughter team ...

Which is where the second step comes into play. When they do react, say “high five” and give them the treat as their reward.

Lateral-thinking puzzles fall into the latter category. Among the trickiest riddles out there, these brain games will give your noggin a serious workout. That’s because they’re not as clear-cut as ...