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The Most Difficult Tasks (page 169)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1681 to 1690. |
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/2022/02/12/mastermind-1644624301.png','/Which-is-a-winning-combination-of-digits/7177'))
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. 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/2022/01/25/mastermind-1643069101.png','/Find-the-right-combination/7159'))
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. Find number abc
)
If c8b0a - 1a0c1 = 8a613 find number abc. Multiple solutions may exist. 
What do I look like?
A newlywed couple moves into their new house. One day, the husband comes home from work and his wife says: "Honey, in the upstairs bathroom one of the pipes is leaking in the upstairs bathroom. Could you fix it?"
The husband says: "What do I look like? Mr. Plumber?"
A few days go by, and he comes home from work and his wife says: "Honey, the car won't start. I think it needs a new battery. Could you change it for me?"
He says: "What do I look like? Mr. Goodwrench?"
Another few days go by, and it's raining pretty hard. The wife finds a leak in the roof. She says: "Honey, there's a leak on the roof! Can you please fix it?"
He says: "What do I look like, Bob Vila?"
The next day the husband comes home, and the roof is fixed. So is the plumbing. So is the car. He asks his wife what happened.
"Oh, I had a handyman come in and fix them," she says.
"Great! How much is that going to cost me?" he snarls.
The wife says: "Nothing. He said he'd do it for free if I either baked him a cake or slept with him."
"Well, what kind of cake did you make?" asks the husband.
"What do I look like?" she says. "Betty Crocker?"
Find number abc
)
If 8cc08 + bab77 = 97a85 find number abc. Multiple solutions may exist. 
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/2021/12/28/mastermind-1640649901.png','/What-a-winning-combination/7131'))
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. 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/2021/11/04/magic-square-1635984317.png','/MAGIC-SQUARE-Calculate-A-B-C/7077'))
The aim is to place the some numbers from the list (4, 8, 11, 13, 17, 20, 33, 37, 40, 45) 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. Calculate the number 5800
. Each of the numbers can be used only once.','/archive/2021/10/22/numbermania-1634861101.png','/calculate-the-number-5800/7064'))
NUMBERMANIA: Calculate the number 5800 using numbers [1, 6, 3, 2, 42, 817] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Calculate the number 866
. Each of the numbers can be used only once.','/archive/2021/10/18/numbermania-1634515501.png','/calculate-the-number-866/7060'))
NUMBERMANIA: Calculate the number 866 using numbers [3, 5, 6, 3, 90, 602] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
)
If 76acc - 10ba3 = 663ab find number abc. Multiple solutions may exist. Calculate the number 856
. Each of the numbers can be used only once.','/archive/2021/10/08/numbermania-1633651501.png','/calculate-the-number-856/7050'))
NUMBERMANIA: Calculate the number 856 using numbers [4, 9, 4, 4, 30, 764] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
