25. Can you define the "rear part of the foot of the central character in Homer's 'Iliad'"?
From Quiz Rewritten Idioms
Answer:
Achilles heel
If someone appears to be invincible in every area of the human condition, and seemingly unable to be defeated, but has one small area of weakness that can bring that person undone, he or she is described as having an Achilles heel. Achilles is the leading protagonist in "The Iliad", a work by the famous Ancient Greek author, Homer. An example of someone with an Achilles heel could be the famous golfer, Tiger Woods. Seemingly unable to be beaten, the golden boy of the media and the golfing profession was revealed to have betrayed his wife on multiple occasions with a rather large number of women. When the news broke, he lost assorted sponsorships, lost his golfing form (going from number one to dropping below the top 500 players in the world by May 2016), his wife divorced him, and his reputation was damaged irreparably.