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The Most Difficult Tasks (page 7)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 61 to 70. |
Find number abc
)
If b5b29 - 69bac = c599b find number abc. Multiple solutions may exist. Correct answers: 0
#brainteasers #math
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/2026/04/25/mastermind-1777075501.png','/Find-the-right-combination/8698'))
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: 0
#brainteasers #mastermind
Calculate the number 789
. Each of the numbers can be used only once.','/archive/2026/04/24/numbermania-1776989101.png','/calculate-the-number-789/8697'))
NUMBERMANIA: Calculate the number 789 using numbers [5, 5, 7, 5, 14, 546] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
Honey, said this husband to his wife...
"Honey," said this husband to his wife, "I invited a friend home for supper."
"What? Are you crazy? The house is a mess, I didn't go shopping, all the dishes are dirty, and I don't feel like cooking a fancy meal!"
"I know all that."
"Then, why did you invite a friend for supper?"
"Because the poor guy is thinking about getting married."
"What? Are you crazy? The house is a mess, I didn't go shopping, all the dishes are dirty, and I don't feel like cooking a fancy meal!"
"I know all that."
"Then, why did you invite a friend for supper?"
"Because the poor guy is thinking about getting married."
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/2026/04/23/magic-square-1776902816.png','/MAGIC-SQUARE-Calculate-A-B-C/8696'))
The aim is to place the some numbers from the list (2, 5, 8, 13, 16, 28, 31, 32, 36, 44, 47, 52, 73) 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: 0
#brainteasers #math #magicsquare
Find number abc
)
If 2abb7 + ca3b2 = 11a02a find number abc. Multiple solutions may exist. Correct answers: 0
#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/2026/04/21/mastermind-1776729901.png','/What-a-winning-combination/8694'))
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: 0
#brainteasers #mastermind
Calculate the number 2598
. Each of the numbers can be used only once.','/archive/2026/04/20/numbermania-1776643501.png','/calculate-the-number-2598/8693'))
NUMBERMANIA: Calculate the number 2598 using numbers [3, 3, 7, 5, 55, 643] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
Find number abc
)
If c9abc - c4035 = 5a4a find number abc. Multiple solutions may exist. Correct answers: 0
#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/2026/04/18/mastermind-1776470701.png','/Which-is-a-winning-combination-of-digits/8691'))
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: 0
#brainteasers #mastermind
Calculate the number 687
. Each of the numbers can be used only once.','/archive/2026/04/17/numbermania-1776384301.png','/calculate-the-number-687/8690'))
NUMBERMANIA: Calculate the number 687 using numbers [7, 6, 6, 8, 19, 125] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
