BRAIN TEASERS
The Most Difficult Tasks (page 760)

The Most Difficult Tasks (page 760)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 7591 to 7600.
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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: 348
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #riddles
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 353
The first user who solved this task is Roxana zavari.
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#brainteasers #math #riddles
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 355
The first user who solved this task is Manguexa Wagle.
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#brainteasers #math #riddles

An 87 year-old man went to the...

An 87 year-old man went to the doctor to get a physical.
A few days later, the doctor saw the man walking down the street with a gorgeous young lady on his arm.
A couple of days later, when the old man had an appointment with the doctor again, the doctor said, "You're really doing great, aren't you?"
The man replied, "Just doing what you said doctor, "Get a hot mama and be cheerful."
The doctor said, "I didn't say that!... I said you have got a heart murmur. Be careful!"
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 366
The first user who solved this task is Linda Tate Young.
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#brainteasers #math #riddles
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Which number should replace the question mark?

Which number should replace the question mark?
Correct answers: 371
The first user who solved this task is Eric Newton.
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#brainteasers #math #riddles
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 373
The first user who solved this task is Roxana zavari.
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#brainteasers #math #riddles
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 378
The first user who solved this task is Donya Sayah30.
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#brainteasers #math #riddles
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 381
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #riddles
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I am a word of three letters...

I am a word of three letters. I am spelt the same backward and forward; turn me upside down, I will become your mother. What am I?
Correct answers: 391
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #riddles
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 398
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #riddles
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Herbert Henry Dow

Died 15 Oct 1930 at age 64 (born 26 Feb 1866).[mp] who was a pioneer in the American chemical industry and founded the Dow Chemical Company (1896). Dow developed and patented an entirely new electrolytic method for extracting bromine from the prehistoric brine trapped underground at Midland, Mich. and in 1890 organized the Midland Chemical Company. The Dow process was remarkable in that it did not result in a salt by-product, that it operated on comparatively little fuel and it was the first commercially successful use of the direct-current generator in the American chemical industry. He next developed the electrolysis of sodium chloride in order to yield sodium hydroxide (caustic soda) and chlorine for bleaching powder. In 1916, Dow extracted magnesium, a very lightweight metal from brine, and quickly saw its importance as a structural metal. His first patent was issued in 1889. By 1933 he had over 90 patents. His diverse inventions included electric light carbons, steam and internal combustion engines, automatic furnace controls, and water seals, though most of his inventions were chemical in nature.
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