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The Most Difficult Tasks (page 253)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 2521 to 2530. |
Find number abc
)
If aaa22 + 2bca6 = ca168 find number abc. Multiple solutions may exist. 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/2021/02/09/mastermind-1612829101.png','/Which-is-a-winning-combination-of-digits/6810'))
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/2020/11/19/magic-square-1605744373.png','/MAGIC-SQUARE-Calculate-A-B-C/6728'))
The aim is to place the some numbers from the list (3, 5, 6, 8, 17, 20, 22, 30, 31, 34, 36, 66, 69) 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. 
BBQ Guide
We are about to enter the summer and BBQ season.
Therefore it is important to refresh your memory on the etiquette of this sublime outdoor cooking activity, as it's the only type of cooking a "real" man will do, probably because there is an element of danger involved.
When a man volunteers to do the BBQ the following chain of events are put into motion:
Routine...
1. The woman buys the food.
2. The woman makes the salad, prepares the vegetables, and makes dessert.
3. The woman prepares the meat for cooking, places it on a tray along with the necessary cooking utensils and sauces, and takes it to the man who is lounging beside the grill - beer in hand.
Here comes the important part:
4. THE MAN PLACES THE MEAT ON THE GRILL.
More routine...
5. The woman goes inside to organize the plates and cutlery.
6. The woman comes out to tell the man that the meat is burning. He thanks her and asks if she will bring another beer while he deals with the situation.
Important again:
7. THE MAN TAKES THE MEAT OFF THE GRILL AND HANDS IT TO THE WOMAN.
More routine....
8. The woman prepares the plates, salad, bread, utensils, napkins, sauces, and brings them to the table.
9. After eating, the woman clears the table and does the dishes.
And most important of all:
10. Everyone praises the MAN and thanks HIM for his cooking efforts.
11. The man asks the woman how she enjoyed "her night off." And, upon seeing her annoyed reaction, concludes that there's just no pleasing some women.
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/2020/09/01/mastermind-1598918701.png','/Find-the-right-combination/6652'))
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 abb84 + 4a895 = cca9a9 find number abc. Multiple solutions may exist. 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/2020/08/11/mastermind-1597104301.png','/Which-is-a-winning-combination-of-digits/6628'))
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. 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/2020/08/08/mastermind-1596845101.png','/What-a-winning-combination/6624'))
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 7ba4a - 43c4c = baaca find number abc. Multiple solutions may exist. Find number abc
)
If 33bc0 - 104c6 = bbac4 find number abc. Multiple solutions may exist. Find number abc
)
If 732bc - b1cab = 1177a find number abc. Multiple solutions may exist. 
