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New Puzzles in Logical Deduction

Science & Math

Summers, George J.

Mathematics

Dover Pubns

When Adrian, Buford, and Carter eat out, each orders either ham or pork. If Adrian orders ham, Buford orders pork. Either Adrian or Carter orders ham, but not both. Buford and Carter do not both order pork. Who could have ordered ham yesterday, pork today? It is a rare event when a book of truly new logical puzzles is primed, but George Summers has now twice produced such an event. In New Puzzles in Logical Deduction he created 50 truly new puzzles. With new turns of thought, new subtleties of inference, he has here created 50 more! Even if you have not seen the basic situations before, you have never before had a chance to test your logic against the precision of scope of these. The puzzles range in difficulty from the relatively simple examples at the beginning of the book to others, tricky, complex, and subtle enough to test the expert. Most are set in story form. Some are concerned with establishing identities from minimal clues. Others are based on cryptarithmetic, or the identification of numbers. While an occasional problem involves algebra, no special knowledge is required for most, no mathematics beyond high school, no training in traditional or symbolic logic. All that one need to them is the ability to think clearly and consecutively, and to pursue the puzzles in the most downright logical way. Among the strongest features of Summers' book is the solutions section, which takes the reader through every step and every implication of the solutions. After seeing one solution, you cannot help but test your logic against the next puzzle in the book. There are even hints printed at the bottom of the page to stall somewhat the irresistible urge to turn to the answers. To our knowledge this material is unique.

Test Your Logic (Dover Recreational Math)

Humor & Entertainment

Puzzles & Games

Dover Publications

Mind Puzzlers

Sterling Pub. Co., Inc.

A truck driver goes three blocks in the wrong direction down a one-way street...without breaking the law! How can that be? That's just one of the many brain bafflers, knotty problems, mind teasers, and tricky tactics that will have you scratching your head and puzzling it out. Warm up on a few easy ones...but then be very prepared to use your smarts. Give this little conundrum your best shot: Laura won a prize in a raffle. It had been donated by a woman's clothing store. "Great!" she exclaimed happily. "I know just the person to share it with!" What did she win? Happy solving. Answers: 1. The truck driver was walking. 2. The prize was a pair of gloves. Laura only had one arm, and she knew someone else who was in the same situation. 96 pages, 23 b/w illus., 4 x 5.

Pocket Puzzlers: Brain Teasers

Children's Books

Harshman, Edward J.

Steinwachs, Robert

GARDNER, MARTIN

Activities, Crafts & Games

Sterling

Huge collection of tantalizing logic puzzles offers hints when you're stuck, plus step-by-step solutions, imaginatively teaching problem-solving skills. "Will challenge and delight."--Mathematics Teacher. "Fun for puzzle fans of all ages."--Booklist. 256 pages, b/w illus. throughout, 5 3/8 x 7 3/4.

The Great Book of Mind Teasers & Mind Puzzlers

Puzzlewright

The reader's skills in logic and mathematics are tested by a series of thirty-six puzzles

Sterling_Publishing

Even if you start out with a brain that's operating perfectly well, by the time you're halfway through these 36 whodunit puzzles you'll be lucky if you can remember your name! You start by getting caught up in an argument among some musicians, and try to find out who started it; then the dispute turns more serious, when one of the choir members gets murdered. Later, a friendly game of cards features a bit of cheating that leads to a killing; and then a backstage whistling incident causes still another death (many actors believe it's bad luck to hear whistling before a performance). There's much more, for there are 29 culprits to catch, plus seven other puzzles where you must find a missing word or number. Start each Mind Baffler by reading the problem to be solved, then use the handy solution scheme to keep your facts straight. You can peek at hints and clues, and if you're still stumped, then study the pointers on what kind of logic to use, or use the sets of Solution Starters that will put you firmly on the trail of the evildoers. Sterling 128 pages, 60 b/w illus., 5 3/8 x 8 1/4.

Mind Bafflers

Expand your powers of deductive reasoning. From detective stories to enchanting puzzles set in a magic land, these brainteasers demand imagination, logic, and an ability to think outside the box. Try to figure out how a little backstage whistling can lead to death. Take this dare: My Bird can fly faster than any supersonic plane. How can it be so? Separate the liars from the honest people in the backwards, wrong way, mixed up Kingdom of Lidd. Every one's a challenge, and every one is fun.

Classic Logic Puzzles

Willis, Norman D.

Mendoza Fernandez, J. J.

Main Street Pr

It’s not elementary, but you will need Holmes’s famed powers of deduction to solve these crafty puzzles. Here’s how it goes: at the end of each conundrum, you’ll find at least one conditionand sometimes morethat the solution must meet. For example, here’s the first, relatively simple problem:
Mr. Scott, his sister, his son, and his daughter are tennis players. 
<ol>
<li>The best player’s twin and the worst player are of the opposite sex. </li>
<li>The best player and the worst player are the same age.</li>
</ol>
Which one of the four is the best player? 
Did you figure out that Mr. Scott’s sister had to be the same age as his children?
A few of the puzzles demand a basic knowledge of algebra, and others feature drawings or diagrams.

Logical Deduction Puzzles (Official Mensa Puzzle Book)

See the best price to sell, buy, or rent books by Summers, George J.. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Books by Summers, George J.

See the best price to sell, buy, or rent books by Summers, George J.. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

New Puzzles in Logical Deduction

Test Your Logic (Dover Recreational Math)

Mind Puzzlers

Pocket Puzzlers: Brain Teasers

The Great Book of Mind Teasers & Mind Puzzlers

Mind Puzzlers

Mind Bafflers

Classic Logic Puzzles

Logical Deduction Puzzles (Official Mensa Puzzle Book)