Replace the question mark with a number
[3173] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 566 - The first user who solved this task is Sanja Šabović
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 566
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles
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The Umbrella

A 90-year-old man said to his doctor, "I've never felt better. I have an 18-year-old bride who is pregnant with my child. What do you think about that?"
The doctor considered his question for a minute and then said, "I have an elderly friend who is a hunter and never misses a season. One day when he was going out in a bit of a hurry, he accidentally picked up his umbrella instead of his gun. When he got to the Creek, he saw a beaver sitting beside the stream. He raised his umbrella and went, 'bang, bang' and the beaver fell dead. What do you think of that?"
The 90-year-old said, "I'd say somebody else shot that beaver."

The doctor replied, "My point exactly."  

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Pin making machine

In 1832, a pin manufacturing machine was patented by John Ireland Howe (U.S. No. 2013). During the 19th century the American pin industry concentrated in the Naugatuck River Valley because Howe (1793-1876) built a plant in Derby, Connecticut, to make pins with the machine he invented to shape pins in one operation instead of the 18 separate steps required for hand production. He turned for mechanical help to Robert Hoe (who built printing presses.) His first working model of a machine that would make pins, though imperfect, was exhibited that year at the American Institute Fair in New York, where Howe received a silver medal. He improved the machine during the winter of 1832-33. Howe also invented a machine to stick the pins in paper packets.
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