BRAIN TEASERS
The Most Difficult Tasks (page 684)

The Most Difficult Tasks (page 684)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 6831 to 6840.
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Word Association: MAN, SONIC, STAR, CONDUCTOR

Word Association: MAN, SONIC, STAR, CONDUCTOR
Correct answers: 68
The first user who solved this task is Eric Newton.
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#brainteasers #wordpuzzles #wordassociations
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What number comes next?

Look at the series (538, 403, 120, ?), determine the pattern, and find the value of the next number!
Correct answers: 69
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #riddles
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A book costs $1 plus half it...

A book costs $1 plus half its price. How much does it cost?
Correct answers: 69
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #riddles

Cast Out of Eden

Q: What excuse did Adam give to his children as to why he no longer lived in Eden?
A: "Your mother ate us out of house and home."
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What is the next number in this sequence?

What is the next number in this sequence? (77, 49, 36, 18, ...)
Correct answers: 69
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #riddles
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I come in many colors and I ...

I come in many colors and I am very thin, I am found in every country, even in your home, I am very important, you can be very creative with me, I can even help you learn. What am I?
Correct answers: 69
The first user who solved this task is Manguexa Wagle.
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#brainteasers #riddles
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Remove 5 letters from this seq...

Remove 5 letters from this sequence (BPYERMIFSSICAON) to reveal a familiar English word.
Correct answers: 69
The first user who solved this task is Thinh Ddh.
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#brainteasers #wordpuzzles
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 69
The first user who solved this task is Thinh Ddh.
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#brainteasers #math #riddles
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Remove 3 letters from this seq...

Remove 3 letters from this sequence (WEAPPOIWNS) to reveal a familiar English word.
Correct answers: 69
The first user who solved this task is Manguexa Wagle.
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#brainteasers #wordpuzzles
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Remove 4 letters from this seq...

Remove 4 letters from this sequence (AOOTTORNREEY) to reveal a familiar English word.
Correct answers: 69
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #wordpuzzles
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Find number abc

If 63486 + caab6 = 13bc4a find number abc. Multiple solutions may exist.
Correct answers: 69
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Elmer Sperry

Born 12 Oct 1860; died 16 Jun 1930 at age 69.Elmer Ambrose Sperry was an American engineer and inventor who devised the gyrocompass. In the 1890's he made useful inventions in electric mining machinery, and patent electric brake and control system for street- or tramcars. In 1908, he patented the active gyrostabilizer which acted to stop a ship's roll as soon as it started. He patented the first gyrocompass designed expressly for the marine environment in 1910. This "spinning wheel" gyro was a significant improvement over the traditional magnetic compass of the day and changed the course of naval history. The first Sperry gyrocompass was tested at-sea aboard the USS Delaware in 1911 and established Sperry as a world leader in the manufacture of military gyrocompasses for the next 80 years.
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