Question { Microsoft, 9901 }

A remote island contains a tribe whose members have either
blue or brown eyes. Tribe members do not know the color of
their eyes and if they learn it, they must kill themselves
the same night. Every member of the tribe always behaves
logically...

Answer

This Problem has many logical approaches, some are given
below:
1.Tribes doesn't know the names for the color.They should
be illeterate
2.Tribes should be having color blindness disorder.
3.They dont have the habit of using mirror.
4.They shoulld be nocturnal, in the night the color of the
eye wont be much visible.