Puzzle Box, Volume 1 (Dover Brain Games & Puzzles)

4.2 / 5

Product ID:

812079

Identifier:

0486810046

Brand:

Dover Publications

Model:

Shipping Weight:

0.68 lbs

Manufacturer:

Dover Publications

Shipping Dimension:

10.79 x 8.27 x 0.67 inches

Share on Social Media

Share on Facebook

Share on X

Share on Instagram

Share on Tiktok

SAVE 43%

₱1,972

₱1,195

+ ₱ 331

International Shipping

Shipping Cost from USA to Philippines inclusive of custom fees.

Cost too high? Check weight and dimension on product details and click "I think this is wrong?" link.

Get it between 2026-04-26 to 2026-05-03.

Additional 3 business days for provincial shipping.

- Price and Stocks may change without prior notice

- Packaging of actual item may differ from photo shown

Electrical items MAY be 110 volts.

See more details
7 Day Return Policy

See more details
Cash On Delivery/Cash Upon Pickup Available

Cash upon Pick-up - orders grand total must not exceed ₱5,000.00. Order will be pickup at Galleon's Office.

Cash on Delivery - orders grand total must not exceed of ₱10,000.00 and must not exceed ₱5,000.00 for provincial areas. See all payment methods

DESCRIPTIONS

Multiplying my age by 6 then subtracting 6 produces the same result as subtracting 7 from my age then multiplying by 7. How old am I? On my broken calculator with keys + - ÷ x =, the only functional number is 7. How can I get 34 to appear in the readout? A country mints four denominations of coins, in whole numbers of cents. It takes four of these coins to make 21¢, or 24¢, or 25¢, or 26¢. What are the denominations of the coins? These and almost 300 other mathematical puzzles appear in this original collection, devised by world-renowned mathematicians, puzzle creators, and devoted puzzle lovers. A unique puzzle project, it unites the efforts of a dozen authors, including software engineer Andrea Gilbert and Bram Cohen, author of the P2P BitTorrent protocol. Seventeen different types of challenges include 3-D puzzles, chess puzzles, connections, dissections, foldings, geometrical puzzles, logic problems, matchstick puzzles, mazes, moving pieces, number puzzles, put-togethers, strimko, sudoku, visual puzzles, weightings, and word puzzles. The difficulty level of each puzzle is marked by stars, ranging from 2 to 5. Average difficulty level is about 3 stars, promising puzzle enthusiasts many entrancing hours of solving and enjoyment.