Conundrums of the 11th Degree: A Treatise on Advanced Riddles

For those who have mastered the conundrums of the 10th degree, but still yearn for more mental gymnastics.

Here, we shall delve into the esoteric realms of:

May the cleverest of minds prevail in these conundrums of the 11th degree!

The Ultimate Conundrum: The Riddle of the Riddlemakers' Riddle