Calculate the number 690
[182] Calculate the number 690 - NUMBERMANIA: Calculate the number 690 using numbers [7, 8, 4, 5, 10, 100] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 53 - The first user who solved this task is Sanja Šabović
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Calculate the number 690

NUMBERMANIA: Calculate the number 690 using numbers [7, 8, 4, 5, 10, 100] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 53
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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All of his life Len from Cape...

All of his life Len from Cape Breton had heard stories of an amazing family tradition. It seems that his father, grandfather and great-grandfather had all been able to walk on water on their 21st birthday. On that day, they'd walk across the lake to the boat club for their first legal drink.
So when Len's 21st birthday came around, he and his pal Corky took a boat out to the middle of the lake. Len stepped out of the boat and nearly drowned!
Corky just managed to pull him to safety. Furious and confused, Len went to see his grandmother. "Grandma, it's my 21st birthday, so why can't I walk across the lake, like my father, his father, and his father before him?"
Granny looked Len straight in the eyes, and said, "Because, you idiot, your father, grandfather and great grandfather was born in January, you were born in July."
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Louis Braille

Died 6 Jan 1852 at age 43 (born 4 Jan 1809).French educator who developed a tactile form of printing and writing, known as braille, since widely adopted by the blind. He himself knew blindness from the age four, following an accident while playing with an awl. In 1821, while Braille was at a school for the blind, a soldier named Charles Barbier visited and showed a code system he had invented. The system, called "night writing" had been designed for soldiers in war trenches to silently pass instructions using combinations of twelve raised dots. Young Braille realised how useful this system of raised dots could be. He developed a simpler scheme using six dots. In 1827 the first book in braille was published. Now the blind could also write it for themselves using a simple stylus to make the dots.
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