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Monthly Archive - July 2025 (page 2)brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20. |
Calculate the number 1177
. Each of the numbers can be used only once.','/archive/2025/07/21/numbermania-1753056301.png','/calculate-the-number-1177/8425'))
NUMBERMANIA: Calculate the number 1177 using numbers [5, 4, 4, 3, 11, 289] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If cb5ac + 733ab = 85a83 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/2025/07/19/mastermind-1752883501.png','/Which-is-a-winning-combination-of-digits/8423'))
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. 
The Doctor Needs A Wrench
A woman with a minor injury was at the hospital because her doctor said she wanted to take a closer look at it to make sure everything was all right. The woman's husband sits patiently in the waiting room.
After a few minutes, the doctor comes out and asks her assistant for a wrench, which understandably concerns the husband.
Then, after a couple more moments, the doctor re-enters the room, this time asking for a screwdriver. The husband grows worried and begins to pace in circles. Then, a little later, the doctor bursts through the doors screaming for a hammer and at that, the husband, in a state of frenzied fear, runs up and asks, 'Doctor, what the heck is wrong with my wife?'
'I don't know,' replies the flustered doctor, 'I can't get my bag open!'
Calculate the number 4278
. Each of the numbers can be used only once.','/archive/2025/07/18/numbermania-1752797101.png','/calculate-the-number-4278/8422'))
NUMBERMANIA: Calculate the number 4278 using numbers [1, 2, 4, 9, 70, 730] 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/2025/07/17/magic-square-1752710763.png','/MAGIC-SQUARE-Calculate-A-B-C/8421'))
The aim is to place the some numbers from the list (7, 8, 17, 19, 26, 27, 36, 50, 65, 66, 75, 91) 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 c6c8c + 9063a = a37aab 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/2025/07/15/mastermind-1752537902.png','/What-a-winning-combination/8419'))
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 473
. Each of the numbers can be used only once.','/archive/2025/07/14/numbermania-1752451501.png','/calculate-the-number-473/8418'))
NUMBERMANIA: Calculate the number 473 using numbers [2, 3, 1, 1, 10, 326] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If 98242 - 9bacc = 18b5 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/2025/07/12/mastermind-1752278701.png','/What-a-winning-combination/8416'))
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. 
