Brothers and sisters I have none; but this man's father is my father's son.
Walter spent three days in the hospital; he was neither sick nor injured, but when it came time to leave, he had to be carried out.
Why?
Peter and Paul are twins. One of them always lies, the other always tells the truth.
You ask one of them, "Is Paul the one that lies?"
"Yes." He answers.
Did you speak to Peter or Paul?