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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. 
Animal Pictures
One day the teacher decides to play an animal game. She holds up a picture of a giraffe and asks if anyone knows what it is. No one raises his/her hand. The teacher says "See it's long neck? What animal has a long neck?"
Sally holds up her hand and asks if it is a giraffe.
"Very good Sally," the teacher replies. Next she holds up a picture of a zebra. None of the students holds up his/her hands. "See the stripes on this animal? What animal has stripes?"
Billy holds up his hand and says it is a zebra. "Very good Billy," the teacher replies. Next she holds up a picture of a deer. None of the students recognized the animal.
"See the big antlers on this animal. What animal has horns like this?"
Still no one guesses. "Let me give you another hint, it's something your mother calls your father."
Johnny shouts out "I know what it is, it's a horny bastard."
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. 
