Random riddles that make no sense?

I am trying to figure out some cool sweet 16 party ideas, (not until january...). And one of the themes I am thinking about is an Alice In Wonderland / Mad Hatter's Tea Party theme. So I was trying to figure out some really good riddles that make no sense and don't really have an actual answer. Kinda like the Mad Hatters riddle "Why is a raven like a writing desk?" <-- makes no sense and doesn't have an answer. But knowing me I'm not much of a good thinker when it comes to these things. So if anyone has any riddles like this please let me know, it would help A LOT! :) (also if you got any really good ideas for a sweet 16 in the Winter time, let me know)