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Monthly Archive - May 2026 (page 2)brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20. |
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/2026/05/19/mastermind-1779149101.png','/Find-the-right-combination/8722'))
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 8179
. Each of the numbers can be used only once.','/archive/2026/05/18/numbermania-1779062701.png','/calculate-the-number-8179/8721'))
NUMBERMANIA: Calculate the number 8179 using numbers [3, 6, 3, 7, 85, 843] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If abb7a + ca741 = 1a431c find number abc. Multiple solutions may exist. 
Pet Store
A lady was walking down the street to work and she saw a parrot on a perch in front of a pet store. The parrot said to her, “Hey lady, you are really ugly.” Well, the lady is furious! She stormed past the store to her work.
On the way home she saw the same parrot and it said to her, “Hey lady, you are really ugly.” She was incredibly ticked now. The next day the same parrot again said to her, “Hey lady, you are really ugly.”
The lady was so ticked that she went into the store and said that she would sue the store and kill the bird. The store manager replied profusely and promised he would make sure the parrot didn’t say it again.
When the lady walked past the store that day after work the parrot called to her, “Hey lady.”
She paused and said, “Yes?”
The bird said, “You know.”
Which is a winning combination of digits?
. 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/2026/05/16/mastermind-1778889901.png','/Which-is-a-winning-combination-of-digits/8719'))
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 2222
. Each of the numbers can be used only once.','/archive/2026/05/15/numbermania-1778803502.png','/calculate-the-number-2222/8718'))
NUMBERMANIA: Calculate the number 2222 using numbers [1, 2, 4, 9, 70, 532] 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/2026/05/14/magic-square-1778717147.png','/MAGIC-SQUARE-Calculate-A-B-C/8717'))
The aim is to place the some numbers from the list (8, 12, 13, 28, 32, 33, 38, 42, 43, 52, 61) 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 4baab + 537bc = 1030a7 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/2026/05/12/mastermind-1778544301.png','/What-a-winning-combination/8715'))
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 595
. Each of the numbers can be used only once.','/archive/2026/05/11/numbermania-1778457901.png','/calculate-the-number-595/8714'))
NUMBERMANIA: Calculate the number 595 using numbers [2, 1, 8, 7, 66, 516] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If 39094 + 5aa93 = 90b8c find number abc. Multiple solutions may exist. 
