In a small village there are two kinds of people: liars and truthtellers.
Everybody knows everybody and everybody knows as well who is a liar and who’s a truth-teller.
I approach six villagers and pose the same question to each of them:
"How many liars are among you?"

I get six distinct answers (integers, of course) and deduce the true one.

How many liars are in that group?

Liars always lie and truthtellers never do.

(In reply to Summing up - spoiler by Ady TZIDON)

Very true AT. Your interesting, thought provoking problem is ABSOLUTELY UNDESERVING of a D2 rating. Accordingly, I rated it a 5 to bring up the average rating to D3.5.

Edited on December 31, 2021, 7:34 pm

Posted by K Sengupta on 2021-12-30 21:37:27