Calculate the number 5805
[6949] Calculate the number 5805 - NUMBERMANIA: Calculate the number 5805 using numbers [9, 3, 2, 3, 75, 961] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 9 - The first user who solved this task is Nasrin 24 T
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Calculate the number 5805

NUMBERMANIA: Calculate the number 5805 using numbers [9, 3, 2, 3, 75, 961] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #numbermania
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Funniest tweet at Edinburgh fringe and 6 shortlisted

“wis walkin home n someone threw a block of cheese oot their windee n it hit me on the head, i turned n shouted that wisna very mature wis it”

This Cheesy pun was deemed the best joke of Scottish Twitter by a panel of comedians on 2019 Edinburgh fringe.

@marcsimps0n posted Winning Joke tweet. on Sep 28, 2017.

Other shortlisted entries:

Dreadin the day someone gets down on one knee and asks me to marry them cos a have a hefty double chin when a look down - TM (twitter - @TeiganMair)

Canny believe how expensive being alive is - Nicole Baird (@Nicolebairdd_X)

Mental that yer nipples are older than yer teeth - Danny Gilmartin(@DannyGilmartin1)

Fucking class having a shower at your girlfriends. Using stuff like a charcoal facial scrub and a pomegranate & mango shower milk, I’ve came out the shower smelling like a fresh fruit market on a hot summers day, feeling like a brand new woman. 13/10 would recommend. - Flanny (@LiamFlannigan1)

Also, check out The best Joke of 2019 Edinburgh fringe, alongside nine more jokes that almost won.
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Ultrasonic alarm

In 1953, the first U.S. patent for a burglar alarm operated by ultrasonic sound was issued to Samuel Bagno of New York City (No. 2,655,645) on a system for movement detection in a confined space by intruders or fire. It was manufactured as the Alertronic and first sold in Jun 1950. A sound source produced waves of 19,000 hertz, a frequency too high for normal human hearing. An intruder could be detected by the alarm by a difference in frequency of the reflected waves from the moving body (the Doppler effect). The device would then sound an alarm.
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