Paradox Standard E-dition - Version 1.1 This book is a collection by Carel van der Westhuizen that contains logic puzzles, brainteasers and riddles accumulated over the years from books, via the Internet and from friends and strangers. In most of the cases we have tried to write our own stories around the puzzles. The material will stimulate the lazy mind and give the reader a sense of self satisfaction after the puzzle is solved. This ebook contains 25 of such puzzles.