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Calculate the number 6633

NUMBERMANIA: Calculate the number 6633 using numbers [4, 2, 6, 5, 83, 622] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 1

#brainteasers #math #numbermania

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Detecting Indian flatbread

I say my secret superpower is detecting Indian flatbread in any given room.

My friends all say it's naan-sense.

Author: woodybuzzes reddit user.

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Index Visible

In 1912, Irving Fisher (1867-1947), a Yale professor, patented an archiving system with index cards. On 1 Jul 1925, Fisher's own firm, the Index Visible Company, merged with its principal competitor to form Kardex Rand Co., later Remington Rand, still later Sperry Rand. Fisher earned about $1 million for the invention, which grew to the princely sum of $9 million before being lost in the stock market crash of 1929. Fisher is widely regarded as the greatest economist America has produced, who made much use of mathematics in his work.

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