BRAIN TEASERS
Monthly Archive - August 2014

Monthly Archive - August 2014

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Calculate A*B

Determine the pattern and calculate A*B.
Correct answers: 55
The first user who solved this task is Slobodan Strelac.
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#brainteasers #math
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CINEMANIA: Guess the movie title

The Tramp struggles to live in modern industrial society with the help of a young homeless woman. Film was made in 1936.
Correct answers: 41
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #movie #film #cinemania
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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: 42
The first user who solved this task is James Lillard.
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#brainteasers #mastermind

The Wrong Last Rites

"A PRIEST, PLEASE!" the dying man says again. Then out of the crowd steps a little old Jewish man of at least eighty years of age.
"Mr. Policeman," says the man, "I'm not a priest. I'm not even a Catholic. But for fifty years now I've been living behind St. Mary's Catholic Church on Third Avenue, and every Friday night I listen to the Catholic litany. Maybe I can be of some comfort to this man."
The policeman agrees and brings the octogenarian over to where the dying man lay. He kneels down, leans over the injured man, and says in a solemn voice:
"B - 4. I - 19. N - 38. G - 54. O - 72."
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Calculate the number 1027

NUMBERMANIA: Calculate the number 1027 using numbers [9, 1, 3, 4, 90, 939] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 34
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #numbermania
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Find a missing number

Author: Lidija Duvnjak
Correct answers: 27
The first user who solved this task is Slobodan Strelac.
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#brainteasers #math
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CINEMANIA: Guess the movie title

A determined woman works with a hardened boxing trainer to become a professional. Film was made in 2004.
Correct answers: 59
The first user who solved this task is Eric Newton.
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#brainteasers #movie #film #cinemania
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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: 40
The first user who solved this task is James Lillard.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1034

NUMBERMANIA: Calculate the number 1034 using numbers [5, 7, 3, 9, 21, 952] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 24
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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How many triangles?

How many triangles?
Correct answers: 73
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #riddles
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Find a missing number

Find a missing number
Correct answers: 207
The first user who solved this task is Eric Newton.
CHECK ANSWER
#brainteasers #math
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Augustus De Morgan

Died 18 Mar 1871 at age 64 (born 27 Jun 1806). English mathematician and logician who did important work in abstract symbolic logic, the theory of relations, and formulated De Morgan's laws: one is “NOT (A AND B) = (NOT A) or (NOT B)” and the other is “NOT (A OR B) = (NOT A) AND (NOT B)”. These laws continue to be applied in modern proof theory and for software programming. When he defined and introduced the term “mathematical induction” (1838), he gave the process a rigorous basis and clarity that it had previously lacked. He originated the use of the slash to represent fractions, as in 1/5 or 3/7. In Trigonometry and Double Algebra (1849) he gave a geometric interpretation of complex numbers.«[Born in India, De Morgan (according to Macfarlane) De Morgan considered himself to be British, without being specifically English, Scottish, Welsh or Irish.]
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