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Some Interesting Borders around The World

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Brain Teaser – A Book

A book has N pages, numbered the usual way, from 1 to N. The total number of digits in the page numbers is 1,095. How many pages does the book have? ANSWER: Every page number has a digit in the units...

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Brain Teaser – Ships

There are 5 ships in a port: The Greek ship leaves at six and carries coffee. The ship in the middle has a black chimney. The English ship leaves at nine. The French ship with a blue chimney is to the...

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