Runtime: 78 minutesHow sharp is your thinking? This fantastic audiobook contains over one hundred puzzles and brainteasers designed to really test that grey matter. From cunningly-worded traps to seriously tricky lateral thinking problems, narrator Kent Harris will have you scratching your head... until he reveals the answer, at which point you'll claim you knew it all along! The brainteasers are presented in two different formats: Initially the questions are given one section at a time; alternatively skip to track 23, where the answer for each question is given after a short pause to allow you time to think.