This book is not a training guide explaining in a detailed way the web intelligence functionalities, but rather a web intelligence mind teaser. This book presumes that the reader has already assimilated the web intelligence functionalities, or is at least aware of them. All the challenges listed in this book have been tested with SQL server and as well with web intelligence XI R3. The data samples used in this book can be easily recreated or found in the ''efashion'' universe. Each tab is divided in three parts as shown below: Challenge: Contains the description of the challenge. Expected Result: Provide the expected result. Solution: Display the steps toward a resolution. The author's web site is www.apachegeek.com