From neurologist Michael H. Schecter, MD comes this mind-bending collection of curiously zany riddles sure to challenge anybody bold enough to step outside the box and into The Wonderful World of dR slide . Perfect for those seeking to exercise their minds and sharpen their critical thinking skills, this one-of-a-kind book contains no answers, but rather directs you to an interactive website where, for each riddle, readers can submit their answer, ask for a hint if needed, or unlock the correct answer. The website features a leaderboard that allows you to compete with others to see just how well you do!