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# Calculate the number 3365

NUMBERMANIA: Calculate the number 3365 using numbers [9, 5, 9, 2, 15, 631] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #numbermania
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### Worms

Little Johnny watched the science teacher start the experiment with the worms. Four worms were placed into four separate jars.
The first worm was put into a jar of alcohol
The second worm was put into a jar of cigarette smoke.
The third worm was put into a jar of sperm.
The fourth worm was put into a jar of soil.

After one day, these were the results:
The first worm in alcohol - dead.
Second worm in cigarette smoke - dead.
Third worm in sperm - dead.
Fourth worm in soil - alive.

So the Science teacher asked the class - "What can you learn from this experiment."

Little Johnny quickly raised his hand and said - "As long as you drink, smoke and have sex, you won't have worms."

Little Johnny quickly raised his hand and said - "As long as you drink, smoke and have sex, you won't have worms."
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### John Blenkinsop

Died 22 Jan 1831 (born 1783).English inventor, designer of the first practical and successful railway locomotive. Blenkinsop wanted to find a way of reducing the cost of transporting coal from the Middleton Colliery, Yorkshire, to the nearby town of Leeds. In 1811, he joined forces with engineer Matthew Murray to produce a two-cylinder, geared steam locomotive that utilized a tooth-rack rail system of propulsion. They had rejected the idea that a steam locomotive with smooth wheels on a smooth rail would have sufficient adhesion to propel itself and a load. The Salamanca locomotive, with its cog-toothed driving wheels, first appeared in public on 24 Jun 1812. Four Blenkinsop engines (built 1812-13) hauled coal over cast-iron rails until 1830.
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