The answers to the clues below will follow a certain pattern. Can you determine what it is?

1. Like swords, metaphorically
2. Playing card scam
3. Justification for eating food that has fallen on floor
4. Movie with iconic image of Marilyn Monroe
5. Last possible time before it's too late

Answers:

1. Two-edged
2. Three-card monte
3. Five-second rule
4. The Seven Year Itch
5. Eleventh hour

Pattern:

The answers contain the first five prime numbers in order: 2, 3, 5, 7, 11