|
The Most Difficult Tasks (page 3)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30. |
Calculate the number 903
. Each of the numbers can be used only once.','/archive/2026/08/14/numbermania-1786665901.png','/calculate-the-number-903/8805'))
NUMBERMANIA: Calculate the number 903 using numbers [1, 4, 4, 7, 25, 871] 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/2026/08/13/magic-square-1786579546.png','/MAGIC-SQUARE-Calculate-A-B-C/8804'))
The aim is to place the some numbers from the list (21, 22, 26, 29, 30, 34, 36, 37, 41, 48, 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
Find number abc
)
If 5a1c1 - 41bac = 15c1b find number abc. Multiple solutions may exist. Correct answers: 0
#brainteasers #math
Pig with three eyes?
What do you call a pig with three eyes?
A piiig
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/2026/08/11/mastermind-1786406702.png','/Find-the-right-combination/8802'))
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 3235
. Each of the numbers can be used only once.','/archive/2026/08/10/numbermania-1786320301.png','/calculate-the-number-3235/8801'))
NUMBERMANIA: Calculate the number 3235 using numbers [2, 5, 9, 6, 27, 564] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
Find number abc
)
If 33aa9 + 2cbc3 = 554b2 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/2026/08/08/mastermind-1786147501.png','/Which-is-a-winning-combination-of-digits/8799'))
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 2291
. Each of the numbers can be used only once.','/archive/2026/08/07/numbermania-1786061101.png','/calculate-the-number-2291/8798'))
NUMBERMANIA: Calculate the number 2291 using numbers [5, 7, 6, 5, 90, 345] 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/2026/08/06/magic-square-1785974726.png','/MAGIC-SQUARE-Calculate-A-B-C/8797'))
The aim is to place the some numbers from the list (20, 21, 23, 25, 30, 31, 35, 65, 66, 70) 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 880c7 - bb71a = 5cbb5 find number abc. Multiple solutions may exist. Correct answers: 0
#brainteasers #math
