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The Most Difficult Tasks (page 78)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 771 to 780. |
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
Find number abc
)
If 98242 - 9bacc = 18b5 find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
Butler
The minister and his wife place an ad for a butler. Early the next morning a nicely dressed young man appears at their front door. The minister asks him, "Can you fix breakfast by 7:00 a.m. every day?"
"Well ... I guess I can."
"And can you make the beds, dust the living room, do the dishes, cut the grass, and polish the silver also?"
"Gee, Sir, I just came by to see about getting married. But if it's going to be that much work, you can count me out!"
"Well ... I guess I can."
"And can you make the beds, dust the living room, do the dishes, cut the grass, and polish the silver also?"
"Gee, Sir, I just came by to see about getting married. But if it's going to be that much work, you can count me out!"
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
Find number abc
)
If a0ca6 + 1b5ba = cb898 find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
