I started writing chapter four of Shoujo, but ended up rambling on about this riddle I told my friend. I then adapted it to Death Note so I could justify it being on FanFic. XP
L: Light-kun. I have a riddle for you.
Light (thinking): What could he possible gain from a simple riddle? Still, it couldn't hurt.
L: If you have it, you want to share it. If you share it, you haven't got it. What is it?
Light (thinking): What the hell is he on about? Does he intend to guage my reaction to this? This has nothing to do with being Kira! What the hell is he joking around for? Hm... It's actually a hard one.
L (thinking): Light Yagami hates to lose. He will need to know the answer at all costs.
Light: Is it oxygen?
L: No.
Light: Your blood?
L: ...No. No, it's not.
Light: Is it your soul?
L: You are not even trying, Light Yagami. I'd say you were on the right track, but you're not on a track. That last guess was exactly that—a random guess.
Light: Okay, so what is it?
L: I can't tell you. You need to guess.
Light: Just tell L!
L: *groan* It's a secret.
Light: Tell L!
L: It's a secret!
Light: Seriously, I'm losing interest with this now.
L: Whatever.
...
Light: *shakes L violently* TELL L!
L: IT'S A SECRET!
Light: *tosses L aside* Fine. Don't tell L.
L (thinking): Three... Two... One...
Light: COME ON! JUST TELL L!
L: IT'S... A... SECRET!
...
Light: Oh...
L (thinking): Hehe... That was fun.
L (aloud): I have two coins that add up to thirty-five cents. One of them is not a quarter.
Light: No! I don't wanna play with you anymore!