Final answer:
Oedipus faces various situations in 'Oedipus the King' that cause him trouble, including his quest to find the killer of the previous king, the realization that he himself is the killer, and the fulfillment of the prophecy that he would marry his mother.
Step-by-step explanation:
Oedipus faces several situations that cause him trouble in the play 'Oedipus the King'. Firstly, he is determined to find the killer of the previous king of Thebes in order to lift the plague that is decimating his people. Through his investigation, he discovers that he is the killer, which leads to his downfall. Secondly, he receives a prophecy from the Oracle of Delphi that he will kill his father and marry his mother, and despite his attempts to avoid this fate, it ultimately comes true. Finally, he blinds himself as a result of the discovery of his actions, leaving him defeated and troubled.