BRAIN TEASERS
Monthly Archive - September 2013

Monthly Archive - September 2013

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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What number comes next?

Look at the series, determine the pattern, and find the value of the unknown number!
Correct answers: 136
The first user who solved this task is Sanja Šabović.
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#brainteasers #math
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Calculate the number 175

Calculate the number 175 using numbers [4, 4, 6, 5, 20, 100] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 64
The first user who solved this task is Sanja Šabović.
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#brainteasers #math
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Find the area of the orange figure

Express result to the accuracy of 3 decimal.
Correct answers: 71
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math

The devil herself

A fellow’s wife was very worried about her husband’s heavy drinking and one night she decided to give him a fright. She draped herself in a white sheet and went down to the local cemetery, knowing that her husband was in the habit of taking a shortcut through it on his way home from the pub. It was not long before he came staggering along, and out she jumped from behind a headstone.

“Ooooooo!” she wailed, “I am the devil!”

Her husband sticks out his hand. “Put it there, pal,” he says, “I’m married to your sister.”

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Guess the movie title

Film was made in 1964. A wandering gunfighter plays two rival families against each other in a town torn apart by greed, pride, and revenge.
Correct answers: 79
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #movie #film #cinemania
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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: 71
The first user who solved this task is Sanja Šabović.
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#brainteasers #mastermind
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Calculate the number 120

Calculate the number 120 using numbers [4, 3, 9, 3, 15, 75] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 69
The first user who solved this task is Sanja Šabović.
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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: 74
The first user who solved this task is Sanja Šabović.
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#brainteasers #mastermind
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Guess the movie title

Film was made in 2001. After a brilliant but asocial mathematician accepts secret work in cryptography, his life takes a turn to the nightmarish.
Correct answers: 80
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #movie #film #cinemania
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What a winning 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: 72
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #mastermind
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Which number should replace the question mark?

Which number should replace the question mark?
Correct answers: 302
The first user who solved this task is Slobodan Strelac.
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#brainteasers #math #riddles
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Shapley-Curtis debate

In 1920, Harlow Shapley of the Mount Wilson Observatory and Heber D. Curtis of the Lick Observatory in California, two leading astronomers, debated each other at the Smithsonian Institution on the relationship of the Milky Way Galaxy to the Universe. Shapley's position was that the Milky Way is the only galaxy in the universe,.Curtis, however, argued that the Milky Way exists as just one of many “island universes” in the cosmos. Whereas both scientists provided a stimulating debate, it was Curtis who was vindicated for his opinion when the island universe theory was validated by Edwin Hubble, whose paper was read on 1 Jan 1925 to a meeting of the American Astronomical Society.
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