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The Most Difficult Tasks (page 74)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 731 to 740. |
Find number abc
)
If c6c8c + 9063a = a37aab find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
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. Correct answers: 1
#brainteasers #mastermind
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. Correct answers: 1
#brainteasers #math #numbermania
Black and White
Attending a wedding for the first time, a little girl whispered to her mother, "Why is the bride dressed in white?"
"Because white is the color of happiness, and today is the happiest day of her life."
The child thought about this for a moment, then said, "So why is the groom wearing black?"
"Because white is the color of happiness, and today is the happiest day of her life."
The child thought about this for a moment, then said, "So why is the groom wearing black?"
Find number abc
)
If 98242 - 9bacc = 18b5 find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
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/2025/07/01/mastermind-1751328301.png','/Which-is-a-winning-combination-of-digits/8405'))
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. Correct answers: 1
#brainteasers #mastermind
Find number abc
)
If 90b77 + ab207 = 12b6cb find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
Find number abc
)
If 44c64 + cbca5 = 1346cb find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
Calculate the number 1066
. Each of the numbers can be used only once.','/archive/2025/06/13/numbermania-1749773101.png','/calculate-the-number-1066/8388'))
NUMBERMANIA: Calculate the number 1066 using numbers [7, 4, 3, 3, 49, 186] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 1
#brainteasers #math #numbermania
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/2025/06/12/magic-square-1749686725.png','/MAGIC-SQUARE-Calculate-A-B-C/8387'))
The aim is to place the some numbers from the list (16, 17, 20, 21, 28, 31, 32, 44, 47, 48) 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. Correct answers: 1
#brainteasers #math #magicsquare
Calculate the number 6300
. Each of the numbers can be used only once.','/archive/2025/06/09/numbermania-1749427502.png','/calculate-the-number-6300/8384'))
NUMBERMANIA: Calculate the number 6300 using numbers [7, 2, 9, 1, 62, 390] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 1
#brainteasers #math #numbermania
