* Wordplay: The answers might be based on puns, double meanings, or clever use of language.
* Knowledge of the world: Some riddles require knowledge of common objects, animals, or creatures found in Middle-earth.
* Logic and deduction: Some riddles are solvable by applying simple logic and understanding the question's context.
However, they are still challenging for the characters in the story:
* Gollum's riddles are particularly difficult because he is tricky and enjoys toying with his opponents. He often uses ambiguous wording and tries to mislead.
* Bilbo is not a natural riddle-solver: He struggles with the riddles, and his success comes from a combination of luck, cleverness, and his ability to think outside the box.
Overall, the riddles in The Hobbit are designed to be engaging and entertaining, rather than being incredibly difficult or obscure. They serve as a test of wit and cunning, adding a layer of suspense and intrigue to the story.