BRAIN TEASERS
The Most Difficult Tasks (page 217)

The Most Difficult Tasks (page 217)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 2161 to 2170.
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Calculate the number 306

NUMBERMANIA: Calculate the number 306 using numbers [1, 1, 9, 9, 63, 226] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 14
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (2, 5, 7, 24, 27, 29, 49, 52, 54) 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.
Correct answers: 14
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #magicsquare
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Calculate the number 4059

NUMBERMANIA: Calculate the number 4059 using numbers [7, 9, 5, 2, 32, 250] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 14
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #numbermania

Mike Birbiglia: Sex and Pizza

Sex and pizza, they say, are similar. When its good, its good. When its bad, you get it on your shirt.
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Calculate the number 1125

NUMBERMANIA: Calculate the number 1125 using numbers [5, 4, 3, 3, 43, 125] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 14
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #numbermania
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Find number abc

If bbcc5 + ca4a9 = 104a24 find number abc. Multiple solutions may exist.
Correct answers: 14
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Find the right combination

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.
Correct answers: 14
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind
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Chess Knight Move

Find the title of movie, using the move of a chess knight. First letter is T. Length of words in solution: 3,7,2,3,5.
Correct answers: 14
The first user who solved this task is Fazil Hashim.
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#brainteasers #wordpuzzles #chessknightmove
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Calculate the number 213

NUMBERMANIA: Calculate the number 213 using numbers [1, 4, 2, 1, 20, 140] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 14
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (6, 9, 12, 13, 15, 19, 44, 47, 51, 73) 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.
Correct answers: 14
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find the 7 letters word

Find the 7 letters word. Word may go in all 8 directions.
Correct answers: 14
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #wordpuzzles
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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.
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Charles Stark Draper

Born 2 Oct 1901; died 25 Jul 1987 at age 85.American aeronautical engineer, educator, and science administrator who earned degrees from Stanford, Harvard, and MIT then, in 1939, became head of MIT's Instrumentation Laboratory, which was a centre for the design of navigational and guidance systems for ships, airplanes, and missiles from World War II through the Cold War. He developed gyroscope systems that stabilized and balanced gunsights and bombsights and which were later expanded to an inertial guidance system for launching long-range missiles at supersonic jet targets. He was "the father of inertial navigation." The Project Apollo contract for guiding man and spacecraft to the moon was also placed with the Instrumentation Lab.
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