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Monthly Archive - September 2025 (page 2)brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20. |
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/2025/09/20/mastermind-1758326701.png','/Which-is-a-winning-combination-of-digits/8485'))
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 4066
. Each of the numbers can be used only once.','/archive/2025/09/19/numbermania-1758240301.png','/calculate-the-number-4066/8484'))
NUMBERMANIA: Calculate the number 4066 using numbers [8, 2, 1, 9, 63, 350] 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/2025/09/18/magic-square-1758153948.png','/MAGIC-SQUARE-Calculate-A-B-C/8483'))
The aim is to place the some numbers from the list (3, 5, 6, 10, 12, 13, 18, 20, 21, 56, 66) 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. 
Anger versus Exasperation
The father replied, “It is mostly a matter of degree. Let me show you what I mean.”
With that the father went to the telephone and dialed a number at random. To the man who answered the phone, he said, “Hello, is Melvin there?”
The man answered, “There is no one living here named Melvin. Why don't you learn to look up numbers before you dial”.
“See,” said the father to his daughter. “That man was not a bit happy with our call. He was probably very busy with something and we annoyed him. Now watch….”
The father dialed the number again. “Hello, is Melvin there?” asked the father.
“Now look here!” came the heated reply. “You just called this number and I told you that there is no Melvin here! You've got lot of guts calling again!” The receiver slammed down hard.
The father turned to his daughter and said, “You see, that was anger. Now I'll show you what exasperation means.”
He dialed the same number, and when a violent voice roared, “Hello!”
The father calmly said, “Hello, this is Melvin. Have there been any calls for me?”
Find number abc
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If 84c0b - a1b69 = 5c4a8 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/2025/09/16/mastermind-1757981101.png','/Find-the-right-combination/8481'))
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 786
. Each of the numbers can be used only once.','/archive/2025/09/15/numbermania-1757894701.png','/calculate-the-number-786/8480'))
NUMBERMANIA: Calculate the number 786 using numbers [5, 1, 8, 1, 29, 588] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If abccc - b599b = 3ac5b 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/2025/09/13/mastermind-1757721901.png','/What-a-winning-combination/8478'))
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 6662
. Each of the numbers can be used only once.','/archive/2025/09/12/numbermania-1757635501.png','/calculate-the-number-6662/8477'))
NUMBERMANIA: Calculate the number 6662 using numbers [6, 8, 1, 4, 33, 934] 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/2025/09/11/magic-square-1757549125.png','/MAGIC-SQUARE-Calculate-A-B-C/8476'))
The aim is to place the some numbers from the list (6, 11, 12, 24, 29, 30, 35, 40, 41, 52) 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. 
