Solve This Number Puzzle
[2020] Solve This Number Puzzle - What number should fill in the blank? (8, 43, 11, 41, ?, 39, 17) - #brainteasers #math #riddles - Correct Answers: 215 - The first user who solved this task is Chindu Cho
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Solve This Number Puzzle

What number should fill in the blank? (8, 43, 11, 41, ?, 39, 17)
Correct answers: 215
The first user who solved this task is Chindu Cho.
#brainteasers #math #riddles
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The CEO was scheduled to speak...

The CEO was scheduled to speak at an important convention, so he asked one of his employees to write him a punchy, 20-minute speech.
When the CEO returned from the big event, he was furious. "What's the idea of writing me an hour-long speech?" he demanded to know. "Half the audience walked out before I finished."
The employee was baffled. "I wrote you a 20-minute speech," he replied. "I also gave you the two extra copies you asked for."
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Coal hydrogenation

In 1952, the first large coal hydrogenation chemicals plant in the U.S. opened in Institute, W.Va. The Carbide and Carbon Chemicals Company plant was designed for conveting coal into chemicals. Coal was pulverized and mixed with oil to form a paste, then converted with heat and pressure to combine with hydrogen gas to form liquid chemical intermediate products. The yield included cresols, higher phenols, naphthalene and aromatic hydrocarbons. The $11 million plant processed up to 300 tons of coal a day.
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