BRAIN TEASERS
The Most Difficult Tasks (page 453)

The Most Difficult Tasks (page 453)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 4521 to 4530.
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Calculate the number 2837

NUMBERMANIA: Calculate the number 2837 using numbers [9, 4, 3, 3, 43, 226] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 32
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania
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What is the area of my hexagon?

I have a hexagon, with six sides of equal length. Opposite pairs of sides are parallel, and the distances between these parallel sides are 7, 8 and 9. What is the area of my hexagon? Express result to the accuracy of 3 decimal.
Correct answers: 32
The first user who solved this task is Neelima Subrahmanyam.
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#brainteasers #math #riddles
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Look carefully the picture a...

Look carefully the picture and guess the game name.
Correct answers: 32
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #games

Moths

A woman was having a passionate affair with an inspector from pest-control company. One afternoon they were carrying on in the bedroom together when her husband arrived home unexpectedly. "Quick," said the woman to her lover, "into the closet!", and she pushed him into the closet stark naked. The husband, however, became suspicious and after a search of the bedroom discovered the man in the closet. "Who are you?" he asked him.
"I'm an inspector from Bugs-B-Gone," said the exterminator.
What are you doing in there?" the husband asked.
I'm investigating a complaint about an infestation of moths," the man replied.
"And where are your clothes?" asked the husband.
The man looked down at himself and said, "Those little bastards!"    

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Guess the Game Name

Look carefully the picture and guess the game name.
Correct answers: 32
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #games
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MAGIC SQUARE: Calculate A*B*C

The aim is to place the some numbers from the list (16, 17, 19, 20, 25, 28, 60, 61, 62, 70) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A*B*C.
Correct answers: 32
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #magicsquare
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Calculate the number 4532

NUMBERMANIA: Calculate the number 4532 using numbers [3, 9, 1, 2, 66, 514] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 32
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #numbermania
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Who is the mysterious...

Who is the mysterious person in the picture?
Correct answers: 32
The first user who solved this task is Sanja Šabović.
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#brainteasers #riddles
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Calculate the number 1027

NUMBERMANIA: Calculate the number 1027 using numbers [1, 7, 1, 1, 74, 480] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 32
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania
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Calculate the number 1077

NUMBERMANIA: Calculate the number 1077 using numbers [3, 7, 1, 3, 87, 102] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 32
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #numbermania
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Calculate the number 5662

NUMBERMANIA: Calculate the number 5662 using numbers [1, 7, 3, 6, 90, 540] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 32
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #numbermania
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Prions

In 1997, American biology professor Stanley B. Prusiner won the Nobel Prize for medicine for discovering “prions,” described as “an entirely new genre of disease-causing agents.” The name means “proteinaceous infectious particle.” Prions cause brain diseases such as BSE (Bovine Spongiform Encephalopathy or “mad cow disease”); the human variant Creutzfeldt–Jakob disease; kuru among some peoples in New Guinea; and scrapie in sheep and goats. Prions are too small to be seen with normal microscopy. They are self-replicating, but contain no nucleic acid. Prions are highly resistant to destruction or denaturation by common chemical and physical agents such as disinfectants, formalin, heat, UV or ionizing radiation. Inceration of infected tissues requires a temperature never below 900ºF for four hours.«
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