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The Most Difficult Tasks (page 9)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 81 to 90. |
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/2026/06/23/mastermind-1782173101.png','/Which-is-a-winning-combination-of-digits/8754'))
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 8628
. Each of the numbers can be used only once.','/archive/2026/06/22/numbermania-1782086702.png','/calculate-the-number-8628/8753'))
NUMBERMANIA: Calculate the number 8628 using numbers [5, 4, 5, 4, 50, 937] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
Find number abc
)
If 5a9bb + 49bc9 = 1aab57 find number abc. Multiple solutions may exist. Correct answers: 0
#brainteasers #math
A little girl and a little boy...
A little girl and a little boy were at day-care one day. The girl approached the boy and said, "Hey Billy, want to play house?"
He said, "Sure! What do you want me to do?"
Sally replied, "I want you to communicate your feelings."
"Communicate my feelings?" said a bewildered Billy. "I have no idea what that means."
The little girl nods and says, "Perfect. You can be the husband".
He said, "Sure! What do you want me to do?"
Sally replied, "I want you to communicate your feelings."
"Communicate my feelings?" said a bewildered Billy. "I have no idea what that means."
The little girl nods and says, "Perfect. You can be the husband".
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/2026/06/20/mastermind-1781913901.png','/Which-is-a-winning-combination-of-digits/8751'))
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 4293
. Each of the numbers can be used only once.','/archive/2026/06/19/numbermania-1781827501.png','/calculate-the-number-4293/8750'))
NUMBERMANIA: Calculate the number 4293 using numbers [9, 7, 1, 9, 24, 570] 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/2026/06/18/magic-square-1781741164.png','/MAGIC-SQUARE-Calculate-A-B-C/8749'))
The aim is to place the some numbers from the list (6, 11, 16, 18, 19, 31, 35, 36, 40, 41, 45, 95) 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 b94ab + 3a66c = 6acc3 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/2026/06/16/mastermind-1781568301.png','/What-a-winning-combination/8747'))
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 4438
. Each of the numbers can be used only once.','/archive/2026/06/15/numbermania-1781481901.png','/calculate-the-number-4438/8746'))
NUMBERMANIA: Calculate the number 4438 using numbers [8, 6, 6, 9, 24, 302] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
Find number abc
)
If c40b1 + a313b = 15b208 find number abc. Multiple solutions may exist. Correct answers: 0
#brainteasers #math
