Question 22
Fifteen red and blue parrots stand in a circle. Two parrots of the same colour tell each other the truth; those of different colours lie to each other. The first says to its right-hand neighbour, “Most of us are red.” The next says to its right-hand neighbour, “Most of us are blue.” They continue alternating, and the last says to the first, “Most of us are red.” How many parrots are red?
