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...
View ArticleBrain 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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