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Monthly Archive - March 2025brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10. |
Calculate the number 898
. Each of the numbers can be used only once.','/archive/2025/03/31/numbermania-1743379501.png','/calculate-the-number-898/8314'))
NUMBERMANIA: Calculate the number 898 using numbers [1, 9, 9, 9, 76, 286] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If 8cbb8 - 7ab22 = bcab 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/2025/03/29/mastermind-1743206701.png','/Which-is-a-winning-combination-of-digits/8312'))
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 Sailor and the computer
A retired sailor purchased a computer and began to learn all about computing. Being a sailor, he was used to addressing his ships as "She" or "Her". But was unsure what was proper for computers.
To solve his dilemma, he set up two groups of computer experts: one group was male, and the other group was female.
The group of women reported that computers should be refereed to as "HE" because:
1. In order to get their attention you have to turn them on. 2. They have a lot of data but are still clueless. 3. They are supposed to help you solve problems but half the time they are the problem. 4. As soon as you commit to one, you realise that if you had waited a little longer, you could have had a newer and better model.
The group of men reported that computers should be refered to as "SHE" because:
1. No one but the creator understands their logic. 2. The native language they use to talk to other computers is incomprehensible to anyone else. 3. Even your smallest mistakes are stored in long term memory for later retrieval. 4. As soon as you make a commitment to one, you find yourself spending half your paycheck on accessories for it.
Calculate the number 758
. Each of the numbers can be used only once.','/archive/2025/03/28/numbermania-1743120301.png','/calculate-the-number-758/8311'))
NUMBERMANIA: Calculate the number 758 using numbers [3, 3, 9, 4, 88, 379] 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/2025/03/27/magic-square-1743033928.png','/MAGIC-SQUARE-Calculate-A-B-C/8310'))
The aim is to place the some numbers from the list (12, 14, 21, 28, 30, 37, 40, 53, 55, 62) 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 8c3c0 - 33b88 = b78aa 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/2025/03/25/mastermind-1742861101.png','/Which-is-a-winning-combination-of-digits/8308'))
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 5613
. Each of the numbers can be used only once.','/archive/2025/03/24/numbermania-1742774701.png','/calculate-the-number-5613/8307'))
NUMBERMANIA: Calculate the number 5613 using numbers [6, 8, 8, 9, 60, 271] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If b8a72 - cac31 = 37441 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/2025/03/22/mastermind-1742601901.png','/Find-the-right-combination/8305'))
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. 
