BRAIN TEASERS
Brain Teasers (page 239)

Brain Teasers (page 239)

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 2381 to 2390.
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If two's company, and three'...

If two's company, and three's a crowd, what are four and five?
Correct answers: 34
The first user who solved this task is Nasrin 24 T.
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#brainteasers #riddles
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Can you replace the question mark with a number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 46
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #riddles
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Remove 4 letters from this seq...

Remove 4 letters from this sequence (UISDOAMAGE) to reveal a familiar English word.
Correct answers: 39
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #wordpuzzles

Cactus Detector

I'm no cactus expert...
But I know a prick when I see one.

Jokes of the day - Daily updated jokes. New jokes every day.
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MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (14, 16, 20, 23, 25, 26, 28, 29, 32, 71, 81) 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: 17
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #magicsquare
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Calculate A+B*C*D

Look at the series (C, D, 48, 93, 182, 359, 712, 1417, B, 5643, 11276, A, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A+B*C*D!
Correct answers: 35
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math
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Can you replace the question mark with a number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 99
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #riddles
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Guess the Band Name

Which musician band has an album with a cover as in the picture?
Correct answers: 52
The first user who solved this task is Nasrin 24 T.
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#brainteasers #music #riddles
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Take a look at the picture of ...

Take a look at the picture of the movie scene and guess the name of the person whose face is not visible. Length of words in solution: 6,14
Correct answers: 32
The first user who solved this task is Nasrin 24 T.
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#brainteasers #movie #film #cinemania
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Find the 8 letters word

Find the 8 letters word. Word may go in all 8 directions.
Correct answers: 36
The first user who solved this task is Nasrin 24 T.
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#brainteasers #wordpuzzles
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Find number abc

If a5ab1 + 2175c = 107c47 find number abc. Multiple solutions may exist.
Correct answers: 36
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math
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Svedberg's colloidal sol patent

In 1909, Swedish chemist Theodor Svedberg filed to patent his method of producing colloidal sols or gels, simultaneously in Great Britain, Germany, Denmark and Switzerland. By 1926, he received the Nobel Prize in Chemistry for his work with disperse systems. In colloidal systems, extremely fine particles are dispersed in a continuous medium, in which they remain suspended indefinitely. In molecular-disperse systems, the particles are large molecules like proteins or haemoglobin. Svedberg invented an ultracentrifuge to investigate them. At 40,000 revolutions/min, the particles were redistributed towards the periphery of the motion. Analysis of photographs of the distribution yielded the molecular weight of the particles.«
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