Do toi think that everything L says is a lie?

L is very secretive, and when he a dit that he didn't suspect Light as Kira all the times he was lying. How do we know if the personality he's brought up in Death Note is just a fake? He may have pretending to like sweets, sit in an odd way, and hunch over, maybe at cœur, coeur he's just like Light. I mean L and Light are very similar, anyways. And if toi read the one-shot, it a dit that he doesn't really care about justice, he was just bored. That's the strange thing about L, toi don't know what's real what's not. He a dit himself that "he is a monster that lies."