Answer:
The leaves are on the fruit, the fruit is on the leaves. What is it?
A fruit on a tree. A tree on a fruit.
Which kind of fruit must have a large wedding ceremony with lots of people in attendance?
A toasty and crunchy cereal would be pointless without this spice.
It's a symbol and a fruit, For man's folly, evil's root. But also for great inspiration, and famous application.
Who makes it, has no need of it. Who buys it, has no use for it. Who uses it, can't see it. What is it?