In a remote island, all the inhabitants are either knights, who always speak truthfully or liars, who always speak falsely.

Ten natives of the island are engaged in a conversation. A visitor from a nearby island approaches the natives and, asks them: "How many of you are knights?"

Each of the ten natives answer in turn: 3, 2, 5, 7, 3, 0, 4, 4, 3, 5

In reality, how many of the ten natives are knights?

(In reply to Solution - simpler by Kenny M)

That is true, provided there is no "m" answer  repeated m times.

Posted by Ady TZIDON on 2012-08-28 08:31:24