V&S Publishers Editorial board 
World Famous Unsolved Mysteries [PDF ebook] 
Unusual Facts of Science That Will Surprise Youscience Funnies

The book highlights some of the astonishing features of numbers, such as how to make a magic box, guessing the number in a friend”s mind, telling the year printed on a coin etc. The book is not only fun and informative, but also aweinspiring. It is a priceless treasure of your knowledge and entertainment. #v&spublishers