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The Most Difficult Tasks (page 3)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30. |
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/2026/09/05/mastermind-1788566701.png','/What-a-winning-combination/8827'))
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
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/2026/09/01/mastermind-1788221101.png','/Which-is-a-winning-combination-of-digits/8823'))
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
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/2026/08/29/mastermind-1787961901.png','/What-a-winning-combination/8820'))
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
An elderly gentleman of 85 fea...
An elderly gentleman of 85 feared his wife was getting hard of hearing. So one day he called her doctor to make an appointment to have her hearing checked. The Doctor made an appointment for a hearing test in two weeks, and meanwhile there's a simple informal test the husband could do to give the doctor some idea of the state of her problem.
"Here's what you do," said the doctor, "start out about 40 feet away from her, and in a normal conversational speaking tone see if she hears you. If not, go to 30 feet, then 20 feet, and so on until you get a response."
That evening, the wife is in the kitchen cooking dinner, and he's in the living room. He says to himself, "I'm about 40 feet away, let's see what happens."
Then in a normal tone he asks, "Honey, what's for supper?" No response.
So the husband moved to the other end of the room, about 30 feet from his wife and repeats, "Honey, what's for supper?" Still no response.
Next he moves into the dining room where he is about 20 feet from his wife and asks, "Honey, what's for supper?" Again he gets no response.
So he walks up to the kitchen door, only 10 feet away. "Honey, what's for supper?" Again there is no response.
So he walks right up behind her. "Honey, what's for supper?"
"Damn it Earl, for the fifth time, CHICKEN!"
"Here's what you do," said the doctor, "start out about 40 feet away from her, and in a normal conversational speaking tone see if she hears you. If not, go to 30 feet, then 20 feet, and so on until you get a response."
That evening, the wife is in the kitchen cooking dinner, and he's in the living room. He says to himself, "I'm about 40 feet away, let's see what happens."
Then in a normal tone he asks, "Honey, what's for supper?" No response.
So the husband moved to the other end of the room, about 30 feet from his wife and repeats, "Honey, what's for supper?" Still no response.
Next he moves into the dining room where he is about 20 feet from his wife and asks, "Honey, what's for supper?" Again he gets no response.
So he walks up to the kitchen door, only 10 feet away. "Honey, what's for supper?" Again there is no response.
So he walks right up behind her. "Honey, what's for supper?"
"Damn it Earl, for the fifth time, CHICKEN!"
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/2026/08/25/mastermind-1787616301.png','/What-a-winning-combination/8816'))
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
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/2026/08/22/mastermind-1787357102.png','/Find-the-right-combination/8813'))
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 970
. Each of the numbers can be used only once.','/archive/2026/08/21/numbermania-1787270701.png','/calculate-the-number-970/8812'))
NUMBERMANIA: Calculate the number 970 using numbers [8, 4, 8, 1, 25, 115] 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/2026/08/20/magic-square-1787184373.png','/MAGIC-SQUARE-Calculate-A-B-C/8811'))
The aim is to place the some numbers from the list (5, 7, 15, 29, 30, 31, 32, 39, 40, 47, 78, 96) 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
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If 77ab7 - c3a20 = 1a037 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/2026/08/18/mastermind-1787011501.png','/Find-the-right-combination/8809'))
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 4742
. Each of the numbers can be used only once.','/archive/2026/08/17/numbermania-1786925101.png','/calculate-the-number-4742/8808'))
NUMBERMANIA: Calculate the number 4742 using numbers [5, 6, 7, 2, 32, 910] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
