Book excerpt: Do you like riddles? Do you like brain teasers? Do you like puzzles? Are you a problem solver? Are you creative? Do you think outside the box? If you can answer yes to any of these questions, this book may be perfect for you. Introducing a collection of the best riddles, puzzles, and brain teasers that has been years in the making. These will challenge the way you think, introduce you to new ways to look at problems, and expand your mind. People who love riddles, puzzles, and brain teasers are familiar with the rush of the "aha!" moment, the "that's it!" moment, that "of course!" moment, the moment of clarity that you get when the lightbulb goes off and you've figured it all out. Those moments are great exercise for your mind and brain and will help to keep you mentally sharp. Even if you are new to riddles, puzzles, and brain teasers this book will be a fun and exciting read; it will help you become a better problem solver and become more comfortable with thinking outside the box. The puzzles in this book range in difficulty from light & easy to hard to very hard and will provide a challenge for even the sharpest mind. There are discrete reasoning riddles, mathematical reasoning riddles, practical reasoning riddles, and some classical logic riddles as well, along with the old school problem-solving puzzles that you might have come across in school. There is no word play, the puzzles have definite and satisfying answers, and some of them will blow your mind. In this book you will be figuring out how to cross bridges, how to escape from prison cells, how to steal rope, how to shoot cyborgs, how to transport bananas through the desert, how to figure out the color of a hat you have on, how to turn on lightbulbs, and how to save a ton of prisoners from being executed! Enjoy it! ...and remember, once you peek at the solution you will never be able to unsee it!