There is a land where every inhabitant is either a day-knight or a night-knight. Day-knights tell the truth in the day and lie at night. Night-knights lie in the day and tell the truth at night.
Three inhabitants A, B and C are currently engaged in a conversation. A visitor approaches the three inhabitants and ask each of them their types. They say:
A: If asked, B would claim it is morning.
B: If asked, C would claim it is morning.
C: If asked, A would claim it is night.
Is it day or night? What is the type of each of the inhabitants?
(In reply to answer
by Dej Mar)
It's indeed night, but all we know is that A and C are the same type and B is the opposite.
For A and C to be day knights and B to be a night knight, as opposed to the other way around:
A could be lying, as B would not claim it to be morning.
B could be telling the truth, as C would lie and claim it to be morning.
C could be lying, as A would not state the truth that it is night.
Posted by Charlie
on 2013-08-02 13:28:26