One day I met four men, only one of whom was wearing purple pants. Each of them made one statement, then left.
A: At least two of us are lying.
B: The purple pants person is lying.
C: Everyone here is lying.
D: Only one of the other people is lying.
Who is wearing the purple pants?
On another day, I met another three people, only one of whom was wearing scarlet shorts. They made one statement each, and then left.
A) B wears the scarlet shorts!
B) A wears the scarlet shorts!
C) If B is lying, so am I. If B is telling the truth, so am I.
Who wears the scarlet shorts?