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How Can Minus 40 Fahrenheit Equal Minus 40 Celsius?

science.howstuffworks.com/math-concepts/minus-40-equal.htm

There are two different scales of measuring temperature on Earth, but they merge at just one very cold number.

Even the Smartest Mathematicians Can't Solve the Collatz Conjecture

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The Collatz conjecture can be worked on by 9-year-old math whizzes, but it's flummoxed some of the greatest minds of the past century. Will it ever be solved?

Why is the keypad arrangement different for a telephone and a calculator?

electronics.howstuffworks.com/question641.htm

It's one of those seemingly-unexplainable lapses in logic -- Why do these two digit-based devices order their number keys in exactly opposite ways?

What Are the Books of the Bible in Order? Who Chose Them?

people.howstuffworks.com/books-of-bible.htm

The books that make up the Bible were written over a span of 1,000 years. During that time, many other religious writings were also produced. So, who decided which would be part of the Bible and which would be left out?

Mathematician Cracks the 33 Problem

science.howstuffworks.com/math-concepts/mathematician-has-just-cracked-33-problem.htm

Mathematician Andrew Booker has found the three cubes that add up to the number 33, a long-unsolved math problem.

Chaldean Numerology: Unlocking the Secrets of Personal Destiny

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Delve into Chaldean Numerology's wisdom. Discover its unique insights, ancient roots, and numerological significance.

Does More Blades Mean a Better Razor?

health.howstuffworks.com/skin-care/beauty/hair-removal/how-many-blades.htm

How many blades are on your razor? Does it matter? Learn whether how many blades your razor features is important or not.

Only 4% of People Will Ace the Hardest IQ Drill Ever

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Do you have a high IQ? Many of the world's greatest thinkers and innovators have has staggering IQs. Put those smarts to the test with this HowStuffWorks quiz!

What do the big diamond-shaped signs with red yellow and blue diamonds mean?

people.howstuffworks.com/question327.htm

Many buildings in my area have a big red, yellow and blue diamond-shaped sign with numbers on it. Do you know what this sign means?

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