Puzzle Box, Volume 1

by Andrea Gilbert

Multiplying my age by 6 then subtracting 6 produces the same result as subtracting 7 from my age then multiplying by 7. How old am I? On my broken calculator with keys ] - x =, the only functional number is 7. How can I get 34 to appear in the readout? A country mints four denominations of coins, in whole numbers of cents. It takes four of these coins to make 21 , or 24 , or 25 , or 26 . What are the denominations of the coins? These and almost 300...

• Format: Paperback
• Language: English
• ISBN: 0486810046
• ISBN13: 9780486810041
• Release Date: November 2016
• Publisher: Dover Publications
• Length: 96 Pages
• Weight: 0.60 lbs.
• Dimensions: 0.2" x 8.2" x 10.9"