|
The Most Difficult Tasks (page 26)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 251 to 260. |
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/2025/07/10/magic-square-1752105939.png','/MAGIC-SQUARE-Calculate-A-B-C/8414'))
The aim is to place the some numbers from the list (9, 10, 13, 14, 18, 22, 50, 51, 52, 60, 63) 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
)
If ab07c - c34cb = 4a6a2 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/2025/07/08/mastermind-1751933101.png','/Which-is-a-winning-combination-of-digits/8412'))
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. 
Free heaven
An 85-year-old couple, after being married for almost 60 years, died in a car crash. They had been in good health the last ten years, mainly due to her interest in health food and exercising. When they reached the Pearly Gates, St. Peter took them to their mansion, which was decked out with a beautiful kitchen, master bath suite and a Jacuzzi. As they looked around, the old man asked St. Peter how much all this was going to cost.
'It's free,' St. Peter replied, 'this is Heaven.' Next, they went out in the back yard to survey the championship-style golf course that the home was located on. They would have golfing privileges every day and each week, the course changed to a new one representing the great golf courses on earth. The old man asked, 'What are the green fees?'
St. Peter replied, 'This is heaven, you play for free.' Next, they went to the club house and saw the lavish buffet lunch with the cuisine's of the World laid out. 'How much to eat?' asked the old man.
'Don't you understand yet? This is heaven, it is free!' St. Peter replied, with some exasperation. 'Well, where are the low fat and low cholesterol tables?' the old man asked timidly. St. Peter lectured, 'That's the best part - you can eat as much as you like of whatever you like and you never get fat and you never get sick. This is Heaven.'
With that, the old man went into a fit of anger, throwing down his hat and stomping on it, and screaming wildly. St. Peter and his wife both tried to calm him down, asking him what was wrong. The old man looked at his wife and said, 'This is all your fault! If it weren't for your blasted bran muffins and exercise, I could have been here ten years ago!'
Calculate the number 1958
. Each of the numbers can be used only once.','/archive/2025/07/07/numbermania-1751846701.png','/calculate-the-number-1958/8411'))
NUMBERMANIA: Calculate the number 1958 using numbers [7, 4, 2, 5, 59, 512] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
Find number abc
)
If 9b0a5 - 1bc0a = 79259 find number abc. Multiple solutions may exist. Calculate the number 4136
. Each of the numbers can be used only once.','/archive/2025/07/04/numbermania-1751587501.png','/calculate-the-number-4136/8408'))
NUMBERMANIA: Calculate the number 4136 using numbers [3, 6, 3, 4, 73, 763] 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/2025/07/03/magic-square-1751501139.png','/MAGIC-SQUARE-Calculate-A-B-C/8407'))
The aim is to place the some numbers from the list (3, 4, 6, 7, 8, 9, 10, 11, 14, 23, 27) 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
)
If 6ba99 + b0bab = 94cac find number abc. Multiple solutions may exist. Calculate the number 4740
. Each of the numbers can be used only once.','/archive/2025/06/30/numbermania-1751241901.png','/calculate-the-number-4740/8404'))
NUMBERMANIA: Calculate the number 4740 using numbers [5, 5, 2, 5, 70, 944] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
)
If 6c4a6 + 9cb53 = b546c9 find number abc. Multiple solutions may exist. 
