Solutions are available .
Welcome to my page of puzzlers. Most of these are original, but I'm happy to have submissions of other problems which illustrate some oft-misunderstood point of logic, mathematics, mechanics, or science at large. If you find something I've done wrong, please email me. The first person to figure out all seven before the end of the contest will get gift certificates for dinner and a movie. The contest ends midnight 30 June 2001.