people are living in a dome house : a mother, three daughters, a maid,
a chef and a butler.
One day the mother went shopping and when she came back the youngest daughter had been murdered.
She questioned the two daughters.
The first one said: "I was playing on the computer". The second one said: "I was reading".
Then she asked the butler and he said : "I was driving you around while you were shopping".
After that she asked the chef and he said:"I was making lunch".
Finally she asked the maid and she said: "I was dusting the coners".
Question : Who killed the daughter?
See the answer