A Nice little riddle...
 

Alright, I can't explain why I'm posting this, but here it is: A riddle I don't know the answer to. Try your best answers, we'll try to figure it out from here.

There is a knight, a nobleman, and a spy. The knight always tells the truth, the nobleman always tells lies, and the spy sometimes lies and sometimes tells the truth. In court, A accuses B of being a spy, B accuses C of being a spy, and C accuses either A or B of being a spy. Who is the knight, who is the nobleman, and who is the spy?

Alright, try your luck. Lets see if we can get this right.

C is the spy, A is the nobleman, and B is the knight.

If C is accussing either one randomly, or both of them at once, he must be the spy, because he's the only one that could tell the truth or lie. If C is the spy then B can't be the spy, thus A is lying and the noblman, and that leaves the Knight as B.

C makes sense, but how did you decide on who is A and who is B? Actually, that makes sense too. A accuses B, but B doesn't retaliate, he accuses C. That sounds right to me.

No, it's because C is the spy for acussing both, while A is the noblemen because he accuses B of being the spy, when C is the spy, which is accused by B, who is the knight.

Edit - Retaliating isn't the reason, or maybe you just used the wrong word.

I had this question to get into my honors class...I scribbled in C. I think I got it right. Always choose C.

Well- A & B / A or B can't be the spy, so C is lying.
C is the Nobleman.
A is the knight, who is calling B the spy.
And B is calling C the spy because he has the right to. He could lie about it, but he isn't lying in this scenario.

A. Knight
B. Spy
C. Nobleman

Edit - If you need this to get into honors, then the previous answerrs are correct. I was just explaining the logical flaws in the question that could lead to wrong and/or other answers.

I think I used the wrong word, it is getting late here...

But I think I support the

A. Nobleman
B. Knight
C. Spy
scenario...

Because the question isn't A & B, it's A or B

Damn, I was just about to put my answer down when I realized FZ's was the same. Oh well.

In any case,

A - Spy
B - Nobleman
C - Knight

works too. The Knight knows he isn't the Spy, so he accuses A or B. The Spy lies and says Nobleman is the Spy, and Nobleman lies and says Knight is the spy.

No it doesn't. The Knight can't lie, and if he accuses A or B (Meaning he is saying that either of them is the spy at the same time), then he is lying about one of them, that one being the Noblemen.

He said it is A OR B. He knows the truth - that is, that the spy is one of A or B. By saying OR it implicitly absolves him from lying in case one of them is not the spy.