Do you have to put on your lights on a cloudy or raining day?

Rule of thumb... If it's raining enough that you need to use your windshield wipers, you should have your lights on. In SOME states, it's the law.

Car headlights or house lights?

Here in Canada we feel it is very important for safety that we have running lights, usually the headlights, that come on automatically when you start the car.

Yes I do put them on.

What country are you in? Laws differ around the world.

It's the law in some states, but mostly common sense. Headlights are not always to help YOU see, but to help OTHERS see you.

It's a good idea if you don't have Daylight driving Lights.

No. I like risks

Side lights, not full headlights or main beam.

Mostly because sometimes I read.

Depends on where you live. Some places require that you to have your lights on at all times, day or night, regardless of the weather conditions.

Yes, or else it's a bit too gloomy.

Sometimes

Yes, how are you on the road?