...I kinda have one.
So... A window has been broken. You walk outside to see four kids nervously looking around. You decide to question them. Only one person broke the window. This is what the kids say:
A: I didn't do it!
B: A is telling the truth!
C: D is lying!
D: It wasn't me!
One person's story is fishy and that person is the culprit. So who is it?