Answer:
A box without hinges, lock or key, yet golden treasure lies within. Who am I?
It produces a flower but it is not its fruitΝΎ it produces branches which are its fruit.
It's a symbol and a fruit, For man's folly, evil's root. But also for great inspiration, and famous application.
A toasty and crunchy cereal would be pointless without this spice.
The warmer I am, The fresher I am.
I have feet on my head