A%20handy%2C%20paperback%20book%2C%20packed%20with%20puzzles%2C%20games%20and%20activities%20that%20will%20put%20children’s%20powers%20of%20logic%20to%20the%20test.%20The%20puzzles%20include%20breaking%20a%20castle%20code%20using%20patterns%20on%20different%20shields%2C%20drawing%20impossible%20shapes%20and%20lots%20of%20mind-bending%20riddles.%20Full%20of%20colorful%20illustrations%20and%20space%20to%20draw%2C%20color%20and%20complete%20the%20different%20activities%2C%20this%20book%20is%20ideal%20for%20keeping%20children%20busy%20over%20long%20journeys%20and%20other%20quiet%20times.%20Includes%20answers%20at%20the%20back%20of%20the%20book%20so%20children%20can%20play%20alone%20or%20with%20a%20friend.