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Monthly Archive - May 2026 (page 3)brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30. |
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/2026/05/09/mastermind-1778285101.png','/Find-the-right-combination/8712'))
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 4333
. Each of the numbers can be used only once.','/archive/2026/05/08/numbermania-1778198701.png','/calculate-the-number-4333/8711'))
NUMBERMANIA: Calculate the number 4333 using numbers [3, 2, 5, 4, 60, 158] 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/2026/05/07/magic-square-1778112325.png','/MAGIC-SQUARE-Calculate-A-B-C/8710'))
The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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. 
What Commandment?
A man was upset because he had lost his favorite hat. Instead of buying a new one, he decided that he would go to church that Sunday and steal one from the vestibule.
Unfortunately, the usher saw the man come in and before he could go into the vestibule, the usher led him to a pew, where the preacher was just beginning a sermon on the Ten Commandments.
After church, the man went up to the preacher and, shook his hand and said: "I want to thank you for saving my soul today. I came to church to steal a hat, but after hearing your sermon on the Ten Commandments, I changed my mind."
"Why, that's wonderful," the preacher said: "So the commandment 'Thou shalt not steal' changed your mind, did it?"
"No, it wasn't that commandment," the man said: "It was the one about adultery. It reminded me where I left my hat!"
Find number abc
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If 9b003 + 9036b = cab36a find number abc. Multiple solutions may exist. 
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/2026/05/05/mastermind-1777939501.png','/Which-is-a-winning-combination-of-digits/8708'))
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 994
. Each of the numbers can be used only once.','/archive/2026/05/04/numbermania-1777853101.png','/calculate-the-number-994/8707'))
NUMBERMANIA: Calculate the number 994 using numbers [3, 9, 3, 8, 92, 555] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If 5ca4a - bbc8c = 34b53 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/2026/05/02/mastermind-1777680302.png','/Find-the-right-combination/8705'))
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 6943
. Each of the numbers can be used only once.','/archive/2026/05/01/numbermania-1777593901.png','/calculate-the-number-6943/8704'))
NUMBERMANIA: Calculate the number 6943 using numbers [7, 5, 3, 7, 14, 685] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
