Nope, focus on the bold part, you're over thinking this.
I turn polar bears white and I will make you cry. I make guys have to pee and girls comb their hair. I make celebrities look stupid and normal people look like celebrities. I turn pancakes brown and make your champane bubble. If you sqeeze me, I'll pop. If you look at me, you'll pop. Can you answer the riddle?
yup. cause they don't ask you what the answer is, they ask you if you can answer it.
Then "yes" is the right answer, because I was able to answer it with the word "yes." "No" as an answer makes no sense, because it implies that you can't answer the question "Can you answer the riddle?" which you just did.
No legs is on one-leg. Two-leg is sitting on a three-leg and there is something also for the four-leg. What is it?
That's from The Hobbit. I've read the book so I'm not going to answer this one