Finally, we have reached what has become my favorite chapter! We shall now explore the Riddles, of which Tolkien writes in Letters 25:

And what about the Riddles? there is work to be done here on the sources and analogues. I should not be at all surprised to learn that both the hobbit and Gollum will find their claim to have invented any of them disallowed.

JRRT

I will be delighted to learn of sources for these and link the relevant documents here!

[05.026] What has roots as nobody sees,
Is taller than trees,
Up, up it goes,
And yet never grows?