a new q for today!
a murder has been committed.
3 suspect, A, B, C is under custody.
1 of them is lying, 2 of them is telling the truth.
there is only 1 murderer, who is it?
A says: I didn't do it
B says: C did it
C:says: A did it
A has to be telling the truth. because if A lies, B and C doesn
make sense. So C is lying.