BRAIN TEASERS
Monthly Archive - July 2015

Monthly Archive - July 2015

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Calculate the number 1038

NUMBERMANIA: Calculate the number 1038 using numbers [5, 4, 7, 6, 58, 813] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 29
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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CINEMANIA: Guess the movie title

Film was made in 2002.
Correct answers: 34
The first user who solved this task is Sanja Šabović.
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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: 40
The first user who solved this task is Irena Katic Kuzmanovic.
CHECK ANSWER
#brainteasers #mastermind

New Years Resolutions

An overweight business associate of mine decided it was time to shed some excess pounds. He took his new diet seriously, even changing his driving route to avoid his favorite bakery.

One morning, however, he arrived at work carrying a gigantic coffeecake. We all scolded him, but his smile remained cherubic.

"This is a very special coffeecake," he explained. "I accidentally drove by the bakery this morning and there in the window were a host of goodies. I felt this was no accident, so I prayed, `Lord, if you want me to have one of those delicious coffeecakes, let me have a parking place directly in front of the bakery.'

"And sure enough," he continued, "the eighth time around the block, there it was!"

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Calculate the number 1998

NUMBERMANIA: Calculate the number 1998 using numbers [7, 9, 3, 8, 42, 474] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 18
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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CINEMANIA: Guess the movie title

Film was made in 1955.
Correct answers: 37
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: 52
The first user who solved this task is James Lillard.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 3632

NUMBERMANIA: Calculate the number 3632 using numbers [8, 7, 7, 1, 82, 445] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 23
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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CINEMANIA: Guess the movie title

Film was made in 1999.
Correct answers: 51
The first user who solved this task is Djordje Timotijevic.
CHECK ANSWER
#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: 55
The first user who solved this task is Irena Katic Kuzmanovic.
CHECK ANSWER
#brainteasers #mastermind
[link]

Calculate the number 380

NUMBERMANIA: Calculate the number 380 using numbers [7, 3, 4, 3, 89, 127] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 30
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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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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