As Albert Einstein once said, "Imagination is more important than knowledge," and every puzzle here encourages youngsters to think creatively and find ingenious solutions--not just parrot facts they've been spoon-fed.

An incredibly successful, entertaining series!

Develop lateral thinking skills and improve brain power. The goal is to find a logical explanation for what appears to be an illogical situation. Do the puzzles with a friend, taking turns being puzzle setter and solver. By asking yes-or-no questions the solver attempts to find the solution within 20 minutes. One of "The Year's best puzzle books."--Games World of Puzzles. 96 pages, 5 3/8 x 8 1/4.

What a bargain! At more than 700 puzzle-packed pages, this huge, value-priced collection should keep any solver happy...and busy for a very long time. It contains brain-busting challenges of almost every type: math logic problems for the numerically inclined; absolutely amazing lateral thinking conundrums; really great critical thinking bafflers; and mind-boggling word puzzles. Here's just a small sample of what's inside: The 22nd and 24th presidents of the United States had the same mother and the same father, but were not brothers. How could this be so? Stumped? That's because it's one man--Grover Cleveland--who was reelected after skipping a term. And that's just an easy warm-up!

Boggle lovers rejoice! At last there’s a way to play one of America’s favorite games on the go, without the need for all those dice. And it’s in the blockbuster Sit & Solve series that has sold in the millions. Just look at the grid of letters on the page and locate the words by moving from letter to letter, either up-and-down, left-and-right, or diagonally. Write down the words you uncover and check the answers for any that you might have missed. Not only do these mental teasers provide hours of fun, but they’ll improve your vocabulary and word-finding skills at the same time. Plus, unlike the game, no letters in the grid are upside-down or sideways! BOGGLE is a trademark of Hasbro and is used with permission.© 2008 Hasbro. All Rights Reserved. Licensed by Hasbro.

Travelers cooped up in their seats can at least think out of the box! That’s what logic puzzles demand: at first read, these tough little problems seem to provide barely enough information to find the answer. But look again, use your deductive reasoning to eliminate false possibilities, and you’ll reach a solution. Figure out where each of the three provinces in the kingdom of Farflungus is located—and which of three princes rules it. Join Jasmyn for a planetary shopping spree—and try to discover the order in which she visited four planets, and what she bought. The time will fly by!

This is the second volume of a unique collection that brings together the best English-language problems created for students competing in the Computational Linguistics Olympiad. These problems are representative of the diverse areas presented in the competition and designed with three principles in mind: · To challenge the student analytically, without requiring any explicit knowledge or experience in linguistics or computer science; · To expose the student to the different kinds of reasoning required when encountering a new phenomenon in a language, both as a theoretical topic and as an applied problem; · To foster the natural curiosity students have about the workings of their own language, as well as to introduce them to the beauty and structure of other languages; · To learn about the models and techniques used by computers to understand human language. Aside from being a fun intellectual challenge, the Olympiad mimics the skills used by researchers and scholars in the field of computational linguistics. In an increasingly global economy where businesses operate across borders and languages, having a strong pool of computational linguists is a competitive advantage, and an important component to both security and growth in the 21st century. This collection of problems is a wonderful general introduction to the field of linguistics through the analytic problem solving technique. "A fantastic collection of problems for anyone who is curious about how human language works! These books take serious scientific questions and present them in a fun, accessible way. Readers exercise their logical thinking capabilities while learning about a wide range of human languages, linguistic phenomena, and computational models. " - Kevin Knight, USC Information Sciences Institute