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The Most Difficult Tasks (page 20)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 191 to 200. |
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/2026/01/24/mastermind-1769213101.png','/Which-is-a-winning-combination-of-digits/8608'))
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 3716
. Each of the numbers can be used only once.','/archive/2026/01/23/numbermania-1769126701.png','/calculate-the-number-3716/8607'))
NUMBERMANIA: Calculate the number 3716 using numbers [8, 1, 1, 3, 48, 397] 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/2026/01/22/magic-square-1769040327.png','/MAGIC-SQUARE-Calculate-A-B-C/8606'))
The aim is to place the some numbers from the list (9, 22, 23, 25, 26, 29, 30, 39, 42, 46) 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
The children were lined up in...
The children were lined up in the cafeteria of a Catholic elementary school for lunch. At the head of the table was a large pile of apples. The nun made a note, and posted on the apple tray:
'Take only ONE. God is watching.'
Moving further along the lunch line, at the other end of the table was a large pile of chocolate chip cookies.
A child had written a note, 'Take all you want. God is watching the apples.'
'Take only ONE. God is watching.'
Moving further along the lunch line, at the other end of the table was a large pile of chocolate chip cookies.
A child had written a note, 'Take all you want. God is watching the apples.'
Find number abc
)
If c0490 - b8aab = 21a1a 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/2026/01/20/mastermind-1768867502.png','/What-a-winning-combination/8604'))
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
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/2026/01/08/magic-square-1767830745.png','/MAGIC-SQUARE-Calculate-A-B-C/8592'))
The aim is to place the some numbers from the list (6, 15, 17, 18, 19, 21, 22, 33, 35, 36, 92) 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
Calculate the number 3430
. Each of the numbers can be used only once.','/archive/2026/01/05/numbermania-1767571501.png','/calculate-the-number-3430/8589'))
NUMBERMANIA: Calculate the number 3430 using numbers [5, 5, 1, 8, 73, 707] 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/2026/01/01/magic-square-1767225944.png','/MAGIC-SQUARE-Calculate-A-B-C/8586'))
The aim is to place the some numbers from the list (5, 7, 11, 14, 16, 20, 32, 34, 38, 51, 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 ab4b0 - 1bcca = 39b8a find number abc. Multiple solutions may exist. Correct answers: 0
#brainteasers #math
Calculate the number 251
. Each of the numbers can be used only once.','/archive/2025/12/29/numbermania-1766966701.png','/calculate-the-number-251/8583'))
NUMBERMANIA: Calculate the number 251 using numbers [3, 2, 8, 2, 35, 143] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
