1.I wonder whether he is a Trojan Horse.
2.He is another regular Sherlock Holmes.
3.The goalkeeper is the heel of Achilles.
4.She is as fair as Helen.
5.In spite of the Herculian efforts made by the enemy, the plot ended in fiasco.
6.They'll cross the Rubicon to remove the obstacles on the road of advance.
7.They have, by this very act, opened a Pandora's box.
8.We'll never be taken in by their Cain's heresy.