Can you replace the question mark with a number?
[6397] 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: 62 - 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: 62
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #riddles
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2 Reasons To Go School

Early one morning, a mother went in to wake up her son.
"Wake up, son. It's time to go to school!"
"But why, Mom? I don't want to go."
"Give me two reasons why you don't want to go."
"Well, the kids hate me for one, and the teachers hate me also!"
"Oh, that's no reason not to go to school. Come on now and get ready."
"Give me two reasons why I should go to school."
"Well, for one, you're 52 years old. And for another, you're the PRINCIPAL!"

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Typesetting machine patent

In 1884, the first U.S. patent for the Linotype typesetting machine was issued to Ottmar Mergenthaler of Baltimore, Maryland. His patent No. 304,272 was for a “matrix making machine.” It was first used commercially on 3 Jul 1886. (An earlier U.S. design of typesetting machine that actually operated received a patent on 15 Sep 1857, though the machine invented by Timothy Alden of New York City was designed to pick up type from cells in a horizonatal rotating wheel, and drop it into a line for composition. The first U.S. patent for a typesetting machine was issued even earlier, to Adrien Delcambre and James Haddon Young of Lisle, France, on 22 Jun 1841, for a machine with piano-style keys to operate push-type levers that released type to fall by gravity.)
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