Replace the question marks w...
[2640] Replace the question marks w... - Replace the question marks with a numbers and calculate product these numbers. - #brainteasers #math - Correct Answers: 108 - The first user who solved this task is Donya Sayah30
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Replace the question marks w...

Replace the question marks with a numbers and calculate product these numbers.
Correct answers: 108
The first user who solved this task is Donya Sayah30.
#brainteasers #math
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Be My Valentine

A guy walks into a post office one day to see a middle-aged, balding man standing at the counter methodically placing "Love" stamps on bright pink envelopes with hearts all over them. He then takes out a perfume bottle and starts spraying scent all over them.
His curiosity getting the better of him, he goes up to the balding man and asks him what he is doing. The man says, "I'm sending out 1,000 Valentine cards signed, 'Guess who?'"
"But why?" asks the man.
"I'm a divorce lawyer," the man replies.
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Power vacuum cleaner

In 1902, (?) the first power-driven vacuum cleaner was built by Hubert Cecil Booth (1871-1955) of London, England. In 1901, Booth, devised a filter bag system that made commercial vacuum cleaners practical. A vacuum cleaner pump driven by a petrol or electric motor, sucked air through fabric which caught the dust. Though effective, Booth's machines were so bulky, they required two workers to operate them, one to maneuver the refrigerator-sized vacuum chamber and another to wield the suction hose. An early use of Booth's machine was to clean the great blue coronation carpet under the throne at Westminster Abbey for the coronation of Edward VII. (30 Aug 1901, U.K. patent number 17,433)
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