The book 'is riddled with' mistakes. [=the book has many mistakes]
Stop speaking in 'riddles'. [=stop speaking in a confusing way]
The first person to solve the 'riddle' wins a candy bar.
(..) to finish what he started. He said that? Are you that guy? Huh? Are you? Because if you are then you can solve the riddle of your heart. I don't know where you get your information, but he wasn't my biggest fan. - What do your remember about your dad huh? - He was cold, he was calculating... (..)2010 Iron Man 2
(..) One of you... Its Black Gates are guarded by more than just Orcs. There is evil there that does not sleep. The Great Eye is ever-watchful. It is a barren wasteland... ...riddled with fire,and ash and dust. The very air you breathe is a poisonous fume. Not with men could you do this. It is folly. (..)2001 The Lord of the Rings: The Fellowship of the Ring
(..) I'm just trying to understand. How could you understand? Do you know what it is to be a lover? To be half of a whole? No. I'll tell you a riddle. You're waiting for a train. A train that will take you far away. You know where you hope this train will take you... ...but you don't know for sure. (..)2010 Inception