Riddle Hamster

Why hello there, young one. I am the Ancient Riddle Hamster. Before you continue on your journey, you must answer a riddle! You must choose.. 1. What gets bigger the more you take away? 2. A boy and his father get into a car accident. When they arrive at the hospital, the doctor sees the boy and exclaims “that’s my son!” How can this be? 3. A woman shoots her husband, then holds him underwater for five minutes. Next, she hangs him. Right after, they enjoy a lovely dinner. Explain.