daily riddle

Here are the riddles for today:

1) Two mothers and two daughters went out to eat, everyone ate one burger, yet only three burgers were eaten in all. How is this possible?

2) A man is found dead one Saturday morning. He was killed while his wife was sleeping. The wife tells the police all that she knows. She tells them that the cook was cooking breakfast, the maid was cleaning and the butler was getting the mail. The police immediately arrest the person who is responsible. Who is responsible and why?