The Akinator

http://us.akinator.com/

This is amazing. It's a bit like 20 questions, and this guy tries to guess which character you're thinking of. He's right 99% of the time, and what's really impressive is that he figures it out with a very standard set of clues, and even if you mess up or don't know up to a third of them. It's amazing. So far, I've given it:

Luthien (From the Silmarrillion, part of the Lotr universe)
Tracey (A character from one season of Pokemon)
Mara Skywalker (Star Wars)
Kazooie (from Banjo-Kazooie)
Belgamina (A very random, small character from FFX)
Bruce Springsteen
Thumbelina
Eddard Stark (from ASOIAF)

The only one it's gotten wrong is Belgamina, and it was very, very close there. (It got Yunalesca, another character in the mythology of FFX with a somewhat similar role).

You can even see how it figured it out. For example, I tried Arya Stark, another ASOIAF character. This is how it went:

Question	Answer given	Answer expected
Is your character an adult man?	No	No
Is your character a female?	Yes	Yes
Has your character really existed?	No	No
Is your character a citizen of the United-States?	No	No
Is your character from a video game?	No	No
Is your character from an anime (Japanese animation)?	No	No
Is your character from a TV series?	No	No
Does your character have magical powers?	No	No
Is your character from a Walt Disney animated feature?	No	No
Is your character from a novel?	Yes	Yes
Is your character English?	No	No
Does your character fight?	Yes	Yes
Is your character less than 18 years old?	Yes	Yes
Does your character have a older brother?	Yes	Yes
Is your character in love with a man?	No	No
Does your character have a sister?	Yes	Yes

And, here's with a real person, I tried Crown Princess Mette-Marit of Norway.

Question	Answer given	Answer expected
Is your character real?	Yes	Yes
Is your character a woman ?	Yes	Yes
Has your character ever been married?	Yes	Yes
Is your character an actor?	No	No
Is your character a singer, or does he work with a singer (as a songwriter, producer, musician...)?	No	No
Is your character internationally famous?	Yes	Yes
Is your character a citizen of the United-States?	No	No
Is your character still alive?	Yes	Yes
Is your character tanned?	Probably not	?
Does your character belong to the royal family?	Yes	Yes
Does your character have grand-children?	No	No
Is your character English?	No	No
Is your character of Arabic origins?	No	No
Is your character currently more than 50 years old?	No	No
Is your character sexy?	Don't know	Probably not
Is your character from Argentina?	No	No
Is your character Asian?	No	No
Is your character a native Spanish speaker?	No	No
Is your character blond?	Yes	Yes
Is your character from the Scandinavian area?	Yes	Yes