BRAIN TEASERS

# 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!
The first user who solved this task is Sanja Šabović.
#brainteasers #math

## 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.
The first user who solved this task is Sanja Šabović.
#brainteasers #math

## Find the area of the orange figure

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

### Ethical Problem

An attorney had just finished a consultation with an elderly, nearly blind widow, for which he charged her \$100. The widow opened her purse and removed a \$100 bill. When the lawyer accepted it, he noticed there was another 100 stuck to it. Immediately the lawyers keen legal mind realized he was faced with a vital ethical question:

Should he tell his partner?

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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.
The first user who solved this task is Djordje Timotijevic.
#brainteasers #movie #film #cinemania

## 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.
The first user who solved this task is Sanja Šabović.
#brainteasers #mastermind

## 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.
The first user who solved this task is Sanja Šabović.
#brainteasers #math

## 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.
The first user who solved this task is Sanja Šabović.
#brainteasers #mastermind

## 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.
The first user who solved this task is Djordje Timotijevic.
#brainteasers #movie #film #cinemania

## 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.
The first user who solved this task is Sanja Šabović.
#brainteasers #mastermind

## Which number should replace the question mark?

Which number should replace the question mark?
The first user who solved this task is Slobodan Strelac.