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The Most Difficult Tasks (page 8)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 71 to 80. |
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/2026/04/16/magic-square-1776297945.png','/MAGIC-SQUARE-Calculate-A-B-C/8689'))
The aim is to place the some numbers from the list (18, 19, 20, 21, 22, 28, 29, 54, 56, 63, 72) 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 a6c46 - b4aa2 = 8bc54 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/2026/04/14/mastermind-1776125101.png','/What-a-winning-combination/8687'))
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
Monday
Monday - just like this guy just started cleaning the snow roof
Calculate the number 1265
. Each of the numbers can be used only once.','/archive/2026/04/13/numbermania-1776038701.png','/calculate-the-number-1265/8686'))
NUMBERMANIA: Calculate the number 1265 using numbers [7, 1, 5, 6, 55, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
Find number abc
)
If 68cc8 + 4ab95 = ba85cc 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/2026/04/11/mastermind-1775865901.png','/Which-is-a-winning-combination-of-digits/8684'))
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 6588
. Each of the numbers can be used only once.','/archive/2026/04/10/numbermania-1775779501.png','/calculate-the-number-6588/8683'))
NUMBERMANIA: Calculate the number 6588 using numbers [4, 4, 8, 8, 46, 504] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#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/2026/04/09/magic-square-1775693126.png','/MAGIC-SQUARE-Calculate-A-B-C/8682'))
The aim is to place the some numbers from the list (2, 6, 8, 9, 17, 19, 20, 62, 64, 65) 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 4a18c - 1a3b3 = c98a9 find number abc. Multiple solutions may exist. Correct answers: 0
#brainteasers #math
Calculate the number 7328
. Each of the numbers can be used only once.','/archive/2026/04/06/numbermania-1775433901.png','/calculate-the-number-7328/8679'))
NUMBERMANIA: Calculate the number 7328 using numbers [5, 5, 3, 3, 98, 819] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
