Here's a good one. Marcus has four friends who he is upset with. "Hey! One of you ate my piece of cake! I was saving that for later!" he says. His friends respond: Jim: "I didn't eat it!" Sue: "Neither Jim nor Patricia ate it." Orville: "I didn't eat it, either!" Patricia: "Orville is telling the truth." Somebody isn't telling the truth. That person is the cake gobbler. Who is it?