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

April Fool's Day - Rig a ketchup bottle...

Rig a ketchup bottle to squirt string instead of ketchup.
Hot dogs are ready, kids. Tee-hee!
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.
CHECK ANSWER
#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.
CHECK ANSWER
#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.
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: 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: 304
The first user who solved this task is Slobodan Strelac.
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#brainteasers #math #riddles
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Illuminating gas

In 1875, inventor and scientist, Professor Thaddeus S.C. Lowe (1832-1913) patented a process for water gas production of "illuminating or heating gas." This gas making process fundamentally consists of the spraying of oil into water gas (blue gas) in a hot vessel for the purpose of increasing the calorific value of the gas. This carbureted water gas process was soon the most important manufactured gas in the United States of its time. He later invented a number of important and basic devices for use in atmospheric observation and metallurgical processing. Earlier, during the Civil War, he had created a military balloon force to spy on Confederate troops.
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