The term 'Riddle-Solver' can be summarized as someone who is able to solve puzzles and riddles. Oedipus, a figure from Greek mythology, is an example of a riddle-solver. He famously solved the riddle of the Sphinx, which was a creature that posed a riddle to travelers and would devour them if they were unable to answer correctly. Oedipus was able to answer the riddle correctly, thus saving himself and the city of Thebes.