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Monthly Archive - February 2026 (page 2)brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20. |
Find number abc
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If a582c - 59bcc = a72c find number abc. Multiple solutions may exist. Find the right combination
. Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.','/archive/2026/02/17/mastermind-1771286701.png','/Find-the-right-combination/8632'))
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot. Calculate the number 516
. Each of the numbers can be used only once.','/archive/2026/02/16/numbermania-1771200301.png','/calculate-the-number-516/8631'))
NUMBERMANIA: Calculate the number 516 using numbers [1, 9, 2, 4, 18, 254] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
The magician and the parrot...
A magician was working on a cruise ship in the Caribbean. The audience would be different each week, so the magician allowed himself to do the same tricks over and over again.
There was only one problem: The captain's parrot saw the shows every week and began to understand what the magician did in every trick. Once he understood that, he started shouting in the middle of the show.
"Look, it's not the same hat!" "Look, he's hiding the flowers under the table!" "Hey, why are all the cards the Ace of Spades?"
The magician was furious but couldn't do anything, it was the captain's parrot after all.
One day the ship had an accident and sank. The magician found himself on a piece of wood, in the middle of the ocean, and of course the parrot was by his side.
They stared at each other with hate, but did not utter a word. This went on for several days.
After a week the parrot finally said, "Okay, I give up. What'd you do with the boat?"
Find number abc
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If aa8c9 + 60a0b = bb63a0 find number abc. Multiple solutions may exist. 
Find the right combination
. Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.','/archive/2026/02/14/mastermind-1771027501.png','/Find-the-right-combination/8629'))
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot. Calculate the number 2159
. Each of the numbers can be used only once.','/archive/2026/02/13/numbermania-1770941101.png','/calculate-the-number-2159/8628'))
NUMBERMANIA: Calculate the number 2159 using numbers [5, 8, 4, 2, 27, 278] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. MAGIC SQUARE: Calculate A*B-C
 into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A*B-C.','/archive/2026/02/12/magic-square-1770854745.png','/MAGIC-SQUARE-Calculate-A-B-C/8627'))
The aim is to place the some numbers from the list (15, 16, 19, 32, 33, 36, 44, 69, 70, 73, 78) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A*B-C. Find number abc
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If b0a78 + 6ac66 = 110cbb find number abc. Multiple solutions may exist. What a winning combination?
. Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.','/archive/2026/02/10/mastermind-1770681901.png','/What-a-winning-combination/8625'))
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot. Calculate the number 1603
. Each of the numbers can be used only once.','/archive/2026/02/09/numbermania-1770595501.png','/calculate-the-number-1603/8624'))
NUMBERMANIA: Calculate the number 1603 using numbers [2, 9, 2, 4, 15, 254] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
