Here are the matches for each example with the correct rhetorical technique:
- "What's in a name?" - Rhetorical question
- Cookies are my Kryptonite. - Metaphor
- The frost is glittering crystals on the trees. - Metaphor (although it could also be described as imagery, it aligns more closely with metaphor in this context)
- "It was the best of times, it was the worst of times, it was the age of foolishness...." - Anaphora (repetition of phrasing at the beginning of clauses)
So, to clarify:
- Rhetorical question: "What's in a name?"
- Metaphor: Cookies are my Kryptonite, The frost is glittering crystals on the trees.
- Anaphora: "It was the best of times, it was the worst of times, it was the age of foolishness...."