What Color Is the Dragon?

Credit: Antonio J. Manzanedo Two knights encounter a dragon, who quickly responds, “I am protected by the king’s decree.” Gray rational dragons and red predator dragons always tell the truth; red rational dragons and gray predator dragons always lie. What color is the dragon? Solution This is a puzzle from Norman D. Willis’ Challenging False […]

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The Wine Merchant’s Will

A wine merchant left 24 casks of wine to his three sons, and the casks were in the following conditions: 5 casks were full. 11 casks were half-full. 8 casks were empty. His last will said that each son must be bequeathed with the same amount of wine and the same number of casks. To […]

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An Easy Sequence?

Can you name the number that would complete this peculiar eight-term sequence? 19, 5, 17, 21, 5, 14, 3, ? Solution This is supposed to be an easy sequence but you won’t be able to solve it if you only try to find some sort of mathematical patterns, which is a common mistake made by […]

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Precise Dissection Puzzle

Can you find a way to dissect the figure above in half into two pieces in such a way that both pieces have the same shape and size? Solution The solution is not complicated though it may not be obvious at first glance.  

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Creative Accounting

A farmer sent three sons to college. On their return home, wishing to see how their college education had fitted them for business, he gave to his youngest son ten eggs, to the second son thirty eggs, and to the eldest son fifty eggs. He told them to take their eggs to the market to […]

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A Very Easy Number Sequence Puzzle (If You Figured It Out)

What is the next term in the following sequence? 7, 8, 5, 5, 3, 4, 4, ? Solution This type of puzzle is extremely easy once you found out the pattern involved. However, it can be frustrating to solve for some people. To know the next digit, you must first figure out the underlying pattern […]

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What’s Next: A Pattern Recognition Puzzle

Can you determine the next pattern in this pattern sequence? Solution In every row, the three images depict lines with 0, 1 and 2 intersections. That is, each row must contain an image with 0 intersection, an image with 1 intersection, and an image with 2 intersections. The number of intersections of the images for […]

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Strange Subtraction

I took 1 from 19 and I got 20. How was that possible? . . . . Solution (Click to Show) It’s in Roman numeral. So, taking away I (1) from XIX (19) leaves me with XX (20).

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The Mind-Boggling Chess for Three Players

If you ever begin to get bored at playing normal chess, you may appreciate a chessboard that can accomodate three players. This three-player chess is played on a circular chessboard to male it fair and square (oops!) for all the players. It’s available on Amazon for anyone who’s interested. Here the product’s description: Play chess […]

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From Poor to Rich: A Word Ladder Puzzle

It’s easy for a rich man to become poor, but not the other way around. Transposing POOR to RICH in a game of word ladder isn’t as simple as well as you need ten steps to accomplish that. Can you figure out the steps? (Hint: One of the words is a contraction.) (Note: In a […]

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