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The Most Difficult Tasks (page 5)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 41 to 50. |
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/2026/05/16/mastermind-1778889901.png','/Which-is-a-winning-combination-of-digits/8719'))
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 2222
. Each of the numbers can be used only once.','/archive/2026/05/15/numbermania-1778803502.png','/calculate-the-number-2222/8718'))
NUMBERMANIA: Calculate the number 2222 using numbers [1, 2, 4, 9, 70, 532] 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/2026/05/14/magic-square-1778717147.png','/MAGIC-SQUARE-Calculate-A-B-C/8717'))
The aim is to place the some numbers from the list (8, 12, 13, 28, 32, 33, 38, 42, 43, 52, 61) 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
Graduation Speech
When my son graduated from high school, he had to give a speech. He began by reading from his prepared text.
'I want to talk about my mother and the wonderful influence she has had on my life,' he told the audience. 'She is a shining example of parenthood, and I love her more than words could ever do justice.'
At this point he seemed to struggle for words. After a pause, he looked up with a sly grin and said, 'Sorry, but it's really hard to read my mother's handwriting.'
Find number abc
)
If 4baab + 537bc = 1030a7 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/2026/05/12/mastermind-1778544301.png','/What-a-winning-combination/8715'))
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 595
. Each of the numbers can be used only once.','/archive/2026/05/11/numbermania-1778457901.png','/calculate-the-number-595/8714'))
NUMBERMANIA: Calculate the number 595 using numbers [2, 1, 8, 7, 66, 516] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
Find number abc
)
If 39094 + 5aa93 = 90b8c 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/2026/05/09/mastermind-1778285101.png','/Find-the-right-combination/8712'))
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 4333
. Each of the numbers can be used only once.','/archive/2026/05/08/numbermania-1778198701.png','/calculate-the-number-4333/8711'))
NUMBERMANIA: Calculate the number 4333 using numbers [3, 2, 5, 4, 60, 158] 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/2026/05/07/magic-square-1778112325.png','/MAGIC-SQUARE-Calculate-A-B-C/8710'))
The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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
