BRAIN TEASERS
Brain Teasers

Brain Teasers

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 1 to 10.
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There are two incomplete wor...

There are two incomplete words. Place three (3) letters in bracket so that you can complete the word on the left and begin the word on the right.
Correct answers: 2
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #wordpuzzles
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With three eyes and a black ...

With three eyes and a black as night, I frequently knock down ten men with a single strike! What am I?
Correct answers: 3
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #riddles
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There are four three-digit n...

There are four three-digit numbers that share this property: the number itself, its double and its triple contain each digit from 1 to 9 exactly once. For example, 192 is one of them because 192, 384, 576 contain 1 to 9 each once. 273 is another one of them because 273, 546, 819 contain 1 to 9 each once. Can you find the other two numbers and calculate the product of these two numbers?
Correct answers: 2
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #riddles

Quickie

A man goes into a restaurant where all the waitresses are gorgeous.

A particularly voluptuous waitress wearing a very short skirt comes to his table and asks, "What would you like, sir?"

He looks at the menu, scans her beautiful frame top to bottom, and then answers, "A quickie." The waitress turns and walks away in disgust.

After she regains her composure she returns and asks again, "What would you like, sir?" Again the man thoroughly checks her out and again answers, "A quickie, please."

This time her anger takes over, she reaches over and slaps him across the face with a resounding SMACK! and storms away. A man sitting at the next table then leans over and whispers, "Um, I think it's pronounced 'quiche.'"

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Chess Knight Move

Find the country and its capital city, using the move of a chess knight. First letter is M. Length of words in solution: 5,8.
Correct answers: 5
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #wordpuzzles #chessknightmove
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Calculate the number 1134

NUMBERMANIA: Calculate the number 1134 using numbers [4, 3, 4, 9, 99, 480] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 5
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania
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What number comes next?

Look at the series (7, 14, 42, 168, 840, ?), determine the pattern, and find the value of the next number!
Correct answers: 19
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #riddles
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What has many keys, but can'...

What has many keys, but can't even open a single door?
Correct answers: 9
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #riddles
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Can you name the athletes by the picture?

Can you name the athletes by the picture?
Correct answers: 6
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #riddles #sport
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Replace asterisk symbols with ...

Replace asterisk symbols with a letters (*** D**R*) and guess the name of musician band. Length of words in solution: 3,5.
Correct answers: 7
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #music
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MAGIC SQUARE: Calculate A-B-C

The aim is to place the some numbers from the list (10, 11, 12, 13, 25, 26, 28, 38, 39, 41, 61, 68) 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: 6
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #magicsquare
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There are four three-digit numbers that share this property: the number itself, its double and its triple contain each digit from 1 to 9 exactly once. For example, 192 is one of them because 192, 384, 576 contain 1 to 9 each once. 273 is another one of them because 273, 546, 819 contain 1 to 9 each once. Can you find the other two numbers and calculate the product of these two numbers?
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Jacobus Cornelius Kapteyn

Born 19 Jan 1851; died 18 Jun 1922 at age 71.Dutch astronomer who used photography and statistical methods in determining the motions and spatial distribution of stars. Such work was the first major step after the works of William and John Herschel. He tried to solve the questions of space density of stars as a function of distance from the sun, and the distribution of starts according to brightness per unit volume. Some of his results had lasting value, but some were superceded because he had failed to account for the interstellar absorption. In studies using proper motion to determine stellar distances, he discovered stellar motions are not random, as previously thought, but that stars move in two "star streams" (1904). He introduced absolute magnitude and colour index as standard concepts.
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