What is a short passage in chapter 5 that illustrates Tolkien's poetic writing style

The riddles in Chapter Five illustrate Tolkein's poetic side..... You will find two examples below.

"What has roots as nobody sees,

Is taller than trees,

Up, up it goes,

And yet never grows?"

"Thirty white horses on a red hill,

First they champ,

Then they stamp,

Then they stand still."