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The Most Difficult Tasks (page 10)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 91 to 100. |
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/2026/05/30/mastermind-1780099502.png','/Which-is-a-winning-combination-of-digits/8731'))
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 7592
. Each of the numbers can be used only once.','/archive/2026/05/29/numbermania-1780013101.png','/calculate-the-number-7592/8730'))
NUMBERMANIA: Calculate the number 7592 using numbers [5, 8, 9, 3, 42, 881] 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/2026/05/28/magic-square-1779926727.png','/MAGIC-SQUARE-Calculate-A-B-C/8729'))
The aim is to place the some numbers from the list (16, 17, 22, 28, 29, 34, 45, 60, 61, 66) 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
Toughest job I ever had
Toughest job I ever had: selling doors, door to door.
Bill Bailey (January 13 1964-)
Find number abc
)
If c89a9 - 1b92c = 2104a find number abc. Multiple solutions may exist. Correct answers: 0
#brainteasers #math
Find number abc
)
If 12bbc + 225c6 = bcaa0 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/2026/05/23/mastermind-1779494701.png','/Which-is-a-winning-combination-of-digits/8726'))
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 1314
. Each of the numbers can be used only once.','/archive/2026/05/22/numbermania-1779408302.png','/calculate-the-number-1314/8725'))
NUMBERMANIA: Calculate the number 1314 using numbers [9, 8, 4, 9, 68, 829] 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/2026/05/21/magic-square-1779321971.png','/MAGIC-SQUARE-Calculate-A-B-C/8724'))
The aim is to place the some numbers from the list (14, 15, 16, 23, 24, 25, 30, 57, 58, 69, 70, 71) 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 8cb4a + 9cab3 = 1ac9ac 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/2026/05/19/mastermind-1779149101.png','/Find-the-right-combination/8722'))
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
