Elon Musk's Favorite "Impossible" Riddle - One Mile South, One Mile West, One Mile North

Published on May 14, 2015
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MindYourDecisions

Elon Musk's Favorite "Impossible" Riddle - One Mile South, One Mile West, One Mile North

I'm somewhere on earth. I walk one mile south, one mile west, and one mile north. I end up exactly where I started. Where am I?

This puzzle is a classic brain teaser that was asked at Microsoft. It is also one of the favorites of Elon Musk, co-founder of PayPal and Tesla Motors.

This problem appears in my book Math Puzzles Volume 1 (nearly 5 stars on 9 ratings) which contains many interesting brain teasers and math riddles: http://amzn.to/1GhUUSH

See the solution in a blog post - http://mindyourdecisions.com/blog/201...

If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions

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h/t: http://mashable.com/2015/05/13/elon-m...

I learned about this puzzle from William Poundstone's book "How Would You Move Mount Fuji" which is a collection of many interesting puzzles that were asked at Microsoft. http://amzn.to/1FnSpml

My Books

"The Joy of Game Theory" shows how you can use math to out-think your competition. (rated 4/5 stars on 23 reviews) http://www.amazon.com/gp/product/150...

"The Irrationality Illusion: How To Make Smart Decisions And Overcome Bias" is a handbook that explains the many ways we are biased about decision-making and offers techniques to make smart decisions. (rated 5/5 stars on 1 review) http://www.amazon.com/gp/product/152...

"Math Puzzles Volume 1" features classic brain teasers and riddles with complete solutions for problems in counting, geometry, probability, and game theory. Volume 1 is rated 4.5/5 stars on 11 reviews. http://www.amazon.com/gp/product/151...

"Math Puzzles Volume 2" is a sequel book with more great problems. http://www.amazon.com/gp/product/151...

"Math Puzzles Volume 3" is the third in the series. http://www.amazon.com/gp/product/151...

"40 Paradoxes in Logic, Probability, and Game Theory" contains thought-provoking and counter-intuitive results. (rated 4.9/5 stars on 7 reviews) http://www.amazon.com/gp/product/151...

"The Best Mental Math Tricks" teaches how you can look like a math genius by solving problems in your head (rated 4.7/5 stars on 3 reviews) http://www.amazon.com/gp/product/150...

"Multiply Numbers By Drawing Lines" This book is a reference guide for my video that has over 1 million views on a geometric method to multiply numbers. (rated 5/5 stars on 1 review) http://www.amazon.com/gp/product/150... Elon Musk - Wikipedi, Elon Musk (@elonmusk) | Twitte, Elon Musk Biography - Biograph, Elon Musk | Tesl, Elon Musk - IMD, Elon Musk - Topic - YouTub, Elon Musk | Speaker | TE, Elon Musk on Twitter: "Going to create a site where the public can , Elon Musk: The Success Story of Real life Iron Man | SSI,


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