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Monthly Archive - January 2026brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10. |
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/2026/01/31/mastermind-1769817901.png','/Which-is-a-winning-combination-of-digits/8615'))
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 7003
. Each of the numbers can be used only once.','/archive/2026/01/30/numbermania-1769731501.png','/calculate-the-number-7003/8614'))
NUMBERMANIA: Calculate the number 7003 using numbers [3, 8, 3, 4, 93, 791] 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/2026/01/29/magic-square-1769645145.png','/MAGIC-SQUARE-Calculate-A-B-C/8613'))
The aim is to place the some numbers from the list (3, 4, 5, 16, 17, 18, 60, 61, 62, 63, 79) 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. 
Diagnosis Explained
A 90-year-old man goes for a physical and all of his tests come back normal.
The doctor says, “Larry, everything looks great. How are you doing mentally and emotionally? Are you at peace with God?”
Larry replies, “God and I are tight. He knows I have poor eyesight, so He’s fixed it so when I get up in the middle of the night to go to the bathroom, poof! The light goes on. When I’m done, poof! The light goes off.”
“Wow, that’s incredible,” the doctor says.
A little later in the day, the doctor calls Larry’s wife.
“Bonnie,” he says, “Larry is doing fine! But I had to call you because I’m in awe of his relationship with God. Is it true that he gets up during the night, and poof, the light goes on in the bathroom, and when he’s done, poof, the light goes off?”
“Oh sweet Jesus”, exclaims Bonnie. “He’s peeing in the refrigerator again!”
Find number abc
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If cbcac + 5b671 = b8b74 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/2026/01/27/mastermind-1769472301.png','/What-a-winning-combination/8611'))
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 5876
. Each of the numbers can be used only once.','/archive/2026/01/26/numbermania-1769385901.png','/calculate-the-number-5876/8610'))
NUMBERMANIA: Calculate the number 5876 using numbers [8, 3, 1, 8, 21, 519] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If 8bcac + 260bb = b0ac84 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/2026/01/24/mastermind-1769213101.png','/Which-is-a-winning-combination-of-digits/8608'))
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 3716
. Each of the numbers can be used only once.','/archive/2026/01/23/numbermania-1769126701.png','/calculate-the-number-3716/8607'))
NUMBERMANIA: Calculate the number 3716 using numbers [8, 1, 1, 3, 48, 397] 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/2026/01/22/magic-square-1769040327.png','/MAGIC-SQUARE-Calculate-A-B-C/8606'))
The aim is to place the some numbers from the list (9, 22, 23, 25, 26, 29, 30, 39, 42, 46) 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. 
