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

A man goes to the doctors complaining of migraines and headaches

After giving the man a regular check-up and running some tests, the doctor eventually returned with three bottles. One with blue pills, one with green pills, and one with red pills.

"This is a month's supply of pills." The doctor explains. "Every morning, take one of the blue pills with a large glass of water. Every lunchtime, take one of the green pills with another large glass of water. And at bedtime take one of the red pills with another large glass of water."

Concerned with the number of pills he's going to be taking, the man asks "What's wrong with me, doctor?"

"You're not drinking enough water."

Jokes of the day - Daily updated jokes. New jokes every day.
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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.
CHECK ANSWER
#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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Vincenzo Viviani

Born 5 Apr 1622; died 22 Sep 1703 at age 81.Italian mathematician and geometer who was a leader in his field andfounded the Accademia del Cimento. As one of the first important scientific societies, this organization came before England's Royal Society. In 1639, at age 17, he became the student, secretary and assistant of Galileo (now blind) in Arcetri, until Galileo died in 1642. During his long career, Viviani published a number of books on mathematical and scientific subjects. He edited the first edition of Galileo's collected works (1655-1656), and worked tirelessly to have his master's memory rehabilitated. In 1660, together with Borelli, he measured the velocity of sound by timing the difference between the flash and the sound of a cannon. They obtained the value of 350 metres per second.
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