Can you replace the question mark with a number?
[6515] Can you replace the question mark with a number? - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 43 - The first user who solved this task is Nílton Corrêa de Sousa
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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: 43
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #riddles
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International Bat Appreciation Day Joke

Today is International Bat Appreciation Day! Find a joke about it!

What is a bats favorite TV show?
Love at first bite.

What does a vampire use to bake cakes?
Batter.

What’s printed in the newspapers when a vampire dies?
An obatuary.

What did the bat do when he didn’t know the answer to the teacher‘s question?
He winged it.

How does a bat say hi to her mum?
With a sound wave.

Why do bats live in caves?
Because they rock.

What’s a vampire bat’s favorite fruit?
A neck-tarine.

How do bats do the register at school?
In alpha-bat-ical order.

What animals are best at cricket?
Bats.

What do little bats eat?
Alpha-bat soup.

#internationalbatappreciationday

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Edison phonograph

In 1877, Thomas Alva Edison, though this date is often given as the date of a finished model of his first phonograph, may have actually only made a sketch. Some correspondence in Sep 1877 suggests Edison was at work on his ideas for what became his cylinder phonograph, though construction of a working model may not have begun until 4 Dec, according to the diary of one of Edison's aides. Indeed, Edison did not file for the patent until 24 Dec 1877. The idea came to him while working on a telegraph transmitter, when he noticed that when the tape of the machine was played at high speed, it gave off a noise resembling spoken words. After experimenting with a needle attached to the diaphragm of a telephone receiver to prick paper tape to record a message, his idea evolved to using a stylus on a tinfoil cylinder.«[Image: Sketch dated 20 Nov 1877 given to machinist John Kruesi to make the world's first cylinder phonograph.]
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