The Witty Driver

A policeman interrogates a driver on the road:
- You drive down the road and you see two lights. What is this?
- Well, this is a car.
- Come on, be more specific! What kind of car? Mercedes, Honda, Audi?
- How can I understand the car's brand just by looking at two lights?!?
- Ok, ok. You drive down the road and you see one light. What is this?
- Well, this is a motorbike.
- Come on, be more specific! What kind of motorbike? Yamaha, Honda, Kawasaki?
- Look Mr Policeman, I can not know the motorbike's brand just by looking at one light?!?
- Okey...
But at this moment the driver interrupted the policeman and asked him:
- Let me ask you something. You drive down the road and you see a tempting woman, in short skirt smiling at you. What is she?
- Well, she is a whore - replied the policeman without thinking too much.
- Ah come on, be more specific! Who is she? Your wife, your mother, your daughter?