BRAIN TEASERS
Brain Teasers (page 94)

Brain Teasers (page 94)

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 931 to 940.
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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (4, 5, 6, 7, 12, 13, 24, 52, 62, 64, 70) 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: 1
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#brainteasers #math #magicsquare
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Find number abc

If 62927 - ca97a = 4b954 find number abc. Multiple solutions may exist.
Correct answers: 2
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#brainteasers #math
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Which is a winning combination of digits?

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: 3
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#brainteasers #mastermind

Shipwrecked on an Island

Two men were shipwrecked near an island. When they landed ashore, one of them began screaming and yelling, "We're going to die! We're going to die! There's no food! No water! We're going to die!"The second man leaned calmly against a palm tree. When the first man saw how calm his friend was, he went crazy and shouted, "Don't you understand?! We're going to die!! "Undisturbed, the second man replied, "You don't understand, I make $100,000 a week. "Dumbfounded, the first man looked at him and asked, "What difference does that make?!? We're on an island with no food and no water! We're going to DIE!!! "The second man answered, "You just don't get it. I make $100,000 a week and I tithe ten percent on that $100,000 a week. Wherever I am, my pastor will be sure to find me!"
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Calculate the number 3836

NUMBERMANIA: Calculate the number 3836 using numbers [7, 1, 9, 6, 98, 455] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania
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Find number abc

If a4ab4 - 422c4 = 12310 find number abc. Multiple solutions may exist.
Correct answers: 12
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#brainteasers #math
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Which is a winning combination of digits?

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: 4
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 2420

NUMBERMANIA: Calculate the number 2420 using numbers [2, 2, 5, 1, 97, 582] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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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 (3, 4, 6, 15, 16, 18, 22, 23, 25, 86) 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: 1
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#brainteasers #math #magicsquare
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Find number abc

If c6cb4 - c1a0a = 56ba find number abc. Multiple solutions may exist.
Correct answers: 4
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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: 3
CHECK ANSWER
#brainteasers #mastermind
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Martin Schwarzschild

Born 31 May 1912; died 10 Apr 1997 at age 84.German-American astronomer who worked on stellar structure and evolution, including pulsating stars and differential solar rotation, the helium flash and the ages of star clusters. He traced the post-main sequence evolutionary tracks on the Hertzprung-Russel diagram, indicating how stars become red giants. The computer techniques he used to make stellar models were taken up by subsequent astrophysicists. In 1957, he initiated the Stratoscope projects, using hot-air balloons to carry scientific and photographic instruments to unprescedented stratospheric heights. Using that stable platform he obtained, high-resolution observations of the turbulence in the photosphere of the sun, free from ground-based atmospheric effects. His is the son of German astrophysicist Karl Schwarzschild. In 1936, Martin fled the Nazi regime and moved to America.«
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