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Monthly Archive - March 2019 (page 4)brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 31 to 40. |
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/2019/03/14/magic-square-1552521964.png','/MAGIC-SQUARE-Calculate-A-B-C/5886'))
The aim is to place the some numbers from the list (4, 9, 12, 18, 19, 22, 28, 29, 32, 38, 80, 91) 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 a famous person
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Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 6,9. Find number abc
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If a41ab - 83acb = 1b23b find number abc. Multiple solutions may exist. 
Speed Limit
Sitting on the edge of the highway waiting to catch speeders, a state police officer saw a car driving along at 22 M.P.H. He thinks to himself, that car is just as dangerous as a speeder. So, he turns his lights on and pulls the car over. Approaching the car, he notices there are 5 old ladies, two at the front and 3 at the back, wide eyed and looking like ghosts.
The driver, obviously confused, said, "Officer, I don't understand, I wasn't doing over the speed limit! What did you pull me over for?"
"Ma'am," the officer said, "You should know that driving slower than the speed limit can also be dangerous".
"Slower than the speed limit? No sir! I was doing exactly 22 miles an hour", the old woman said proudly.
The officer, trying not to laugh, explains that 22 is the route number, not the speed limit. A little embarrassed, the woman smiled and thanked the officer for pointing out her error.
"Before I go Ma'am, I have to ask, is everyone ok? These women seem badly shaken and haven't said a word since I pulled you over."
"Oh! they'll be all right in a minute, officer. We just got off Route 142" ...
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/2019/03/12/mastermind-1552349101.png','/Which-is-a-winning-combination-of-digits/5883'))
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. 
Remove 4 letters from this seq...
 to reveal a familiar English word.','/archive/2019/03/11/5882.png','/Remove-4-letters-from-this-seq---/5882'))
Remove 4 letters from this sequence (STMATIEQMENHT) to reveal a familiar English word. Calculate the number 1951
. Each of the numbers can be used only once.','/archive/2019/03/11/numbermania-1552262701.png','/calculate-the-number-1951/5881'))
NUMBERMANIA: Calculate the number 1951 using numbers [5, 2, 1, 4, 26, 279] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Remove 4 letters from this seq...
 to reveal a familiar English word.','/archive/2019/03/10/5880.png','/Remove-4-letters-from-this-seq---/5880'))
Remove 4 letters from this sequence (CEOUMPKLETEDD) to reveal a familiar English word. Find number abc
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If 803bc - ac2ca = 3c1a1 find number abc. Multiple solutions may exist. Find a famous person
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Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 6,7. 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/2019/03/09/mastermind-1552089901.png','/Which-is-a-winning-combination-of-digits/5877'))
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. 
