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Monthly Archive - March 2020brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10. |
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/2020/03/31/mastermind-1585613101.png','/Which-is-a-winning-combination-of-digits/6289'))
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. Calculate the number 3040
. Each of the numbers can be used only once.','/archive/2020/03/30/numbermania-1585526701.png','/calculate-the-number-3040/6288'))
NUMBERMANIA: Calculate the number 3040 using numbers [6, 9, 2, 7, 71, 319] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If b89aa - 2b608 = a13cb find number abc. Multiple solutions may exist. 
An act of kindness....
A travel agent looked up from his desk to see an older lady and an older gentleman peering in the shop window at the posters showing the glamorous destinations around the world. The agent had had a good week and the dejected couple looking in the window gave him a rare feeling of generosity.
He called them into his shop and said, "I know that on your pension you could never hope to have a holiday, so I am sending you off to a fabulous resort at my expense, and I won't take no for an answer."
He took them inside and asked his secretary to write two flight tickets and book a room in a five star hotel. They, as can be expected, gladly accepted, and were on their way.
About a month later the little lady came in to his shop.
"And how did you like your holiday?" he asked eagerly.
"The flight was exciting and the room was lovely," she said. "I've come to thank you. But, one thing puzzled me. Who was that old guy I had to share the room with?"
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/2020/03/28/mastermind-1585353901.png','/Which-is-a-winning-combination-of-digits/6286'))
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. 
Calculate the number 1190
. Each of the numbers can be used only once.','/archive/2020/03/27/numbermania-1585267501.png','/calculate-the-number-1190/6285'))
NUMBERMANIA: Calculate the number 1190 using numbers [8, 6, 8, 5, 20, 615] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 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/2020/03/26/magic-square-1585181126.png','/MAGIC-SQUARE-Calculate-A-B-C/6284'))
The aim is to place the some numbers from the list (8, 12, 15, 16, 27, 31, 33, 34, 37, 40) 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. Find number abc
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If 98015 - ba771 = a12cc 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/2020/03/24/mastermind-1585008301.png','/Which-is-a-winning-combination-of-digits/6282'))
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. Calculate the number 8208
. Each of the numbers can be used only once.','/archive/2020/03/23/numbermania-1584921901.png','/calculate-the-number-8208/6281'))
NUMBERMANIA: Calculate the number 8208 using numbers [6, 7, 9, 3, 25, 807] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If 9a76b + ba769 = acb5bc find number abc. Multiple solutions may exist. 
