After reading the hardest riddle in the world I thought of this very good one. Only yes/no questions can be asked. Heres the riddle and unlike the hardest riddle in the world this one actually makes sence.
Before going to bed, a man shuts off all the lights. Waking up in the morning, the man picks up a newspaper and, upon reading the headline, becomes so distraught that he kills himself. Why
There are so many different variations to this riddle. it has to do with his wife's on life support and the lights won't turn, so he knows his wife's dead, so he kills himself.