BRAIN TEASERS
Monthly Archive - April 2014

Monthly Archive - April 2014

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Decrypt divide and determine the value of the number ABCD

Decrypt divide and determine the value of the number ABCD
Correct answers: 31
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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CINEMANIA: Guess the movie title

A group of professional bank robbers start to feel the heat from police when they unknowingly leave a clue at their latest heist. Film was made in 1995.
Correct answers: 60
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #movie #film #cinemania
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What number should replace the X to the magic square?

What number should replace the X to the magic square? Author: Nebojsa Jevtovic
Correct answers: 60
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #riddles #magicsquare

The Cab Ride

A cab driver pulled up at a stop sign near Central Park in New York. A stark naked woman jumped out from behind a bush, opened the back door of the cab and demanded to be taken to the airport. The cab driver kept looking back at his passenger in the rear view mirror, and she became irritated and said, "Why do you keep staring at me?" The cab driver replied, "Well, you don't have any clothes on and no place to carry any money and I am wondering how you are going to pay your fare?"
The woman opened her legs and pointed to her crotch and said, "How about me paying with this?"
The cab driver looked back at the woman and said, "Do you have anything smaller?"    

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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: 75
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #mastermind
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Decrypt multiplication and determine the value of the number ABA

Decrypt multiplication and determine the value of the number ABA
Correct answers: 50
The first user who solved this task is Djordje Timotijevic.
CHECK ANSWER
#brainteasers #math
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Calculate the number 4460

NUMBERMANIA: Calculate the number 4460 using numbers [1, 1, 4, 7, 63, 804] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 33
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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Decrypt multiplication and determine the value of the number ABCD

Decrypt multiplication and determine the value of the number ABCD
Correct answers: 33
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math
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CINEMANIA: Guess the movie title

Because of his insistence that his companion is an invisible six-foot rabbit, a whimsical middle-aged man is thought by his family to be insane - but the man might be wiser than anyone knows. Film was made in 1950.
Correct answers: 56
The first user who solved this task is Djordje Timotijevic.
CHECK ANSWER
#brainteasers #movie #film #cinemania
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GUESS THE NUMBER: When you increase this four-digit number four times you got the same number in reverse order

GUESS THE NUMBER: When you increase this four-digit number four times you got the same number in reverse order
Correct answers: 71
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#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: 79
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #mastermind
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Edward A. Doisy

Born 13 Nov 1893; died 23 Oct 1986 at age 92.Edward Adelbert Doisy was an American biochemist who shared (with Henrik Dam) the 1943 Nobel Prize for Physiology or Medicine for his isolation and synthesis of vitamin K, a substance that encourages blood clotting (1939), used in medicine and surgery. With the embryologist Edgar Allen (1922-34), he developed assay techniques that facilitated research on sex hormones. Doisy and his associates isolated the sex hormones estrone (theelin, 1929; the first estrogen to be crystallized), estriol (theelol, 1930), and estradiol (dihydrotheelin, 1935). In 1936-39 he isolated two forms of the vitamin, (K1 from lucerne seed and K2 from fish meal, in a pure crystalline form), determined their chemical structures, and synthesized the vitamin.«
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