User blog:Darkest Shadow/Logic Stuff: Mystery of the Murderer.

So I am doing this thing every week called "Logic Stuff". And this one is "Mystery of the Murderer". Here is the conflict.

'A man and a woman get married. They then buy a house. It is perfectly round. They have a son, a daughter, and a maid. 25 years later, the wife was shot. The husband told the son where he was.'

Son: "I was at school."

Then he asked the daughter and she said:

Daughter: "I was working at the restaurant!"

Then he asked the maid and she said:

Maid: "I was just cleaning the corners!"

Who is lying and why?