Find number abc
[7181] Find number abc - If 99cb5 + a5ca9 = caa32a find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 7
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Find number abc

If 99cb5 + a5ca9 = caa32a find number abc. Multiple solutions may exist.
Correct answers: 7
#brainteasers #math
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Doctor Doctor Collection 04

Doctor Doctor I feel like a racehorse.
Take one of these every 4 laps!

Doctor, doctor my sister here keeps thinking she's invisible!
What sister?

Doctor, Doctor I'm on a diet and it's making me irritable. Yesterday I bit someones ear off.
Oh dear, that's a lot of calories!

Doctor, Doctor Can I have second opinion?
Of course, come back tomorrow!
Doctor, Doctor you have to help me out!
Certainly, which way did you come in?

Doctor, Doctor I keep thinking I'm God
When did this start?
Well first I created the sun, then the earth...

Doctor, Doctor I keep thinking I'm invisible
Who said that?

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Thermal cracking patent

In 1913, a U.S. patent for the thermal cracking of crude oil was issued to William Merriam Burton (No.1,049,667). A crude petroleum mixture of various hydrocarbons can be separated into several groups of constituents by physical means, commonly distillation. His thermal cracking process used high heat and high pressure to chemically break longer molecules of less volatile components into smaller molecules, more than doubling the yield of gasoline which was much needed to fuel the motor industry. In its first 15 years of use the process saved more than 1 billion barrels of crude oil. In 1937 the invention of catalytic cracking superceded the Burton process, but it remains in wide use.«
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