General rules defining the driver's behavior in the event of a breakdown or accident, providing first aid

Is the number 112 an all-Poland emergency number for all emergency services?

As a vehicle driver involved in a road accident, in which a person got killed, are you obliged to remain at the scene of the accident?

You have been involved in a road accident as the driver of the vehicle. After administering first aid to the injured persons, are you allowed to leave the scene of the accident before the arrival of the police?

You have participated in a road accident in which people got injured. Are you obliged to remain at the scene of the accident?

When driving a vehicle involved in a road accident in which people are injured, are you obliged to remove the vehicle from the scene of the accident not to obstruct the traffic?

As the driver of a vehicle involved in a road accident, are you obliged to give first aid to casualties?

You are involved in a road accident. Are you obliged to give first aid to the injured persons if you do not have medical qualifications?

In this situation, are you obliged to ensure traffic safety at the scene of the accident?

Are yo obliged to stay at the scene of the accident in this situation?

In the presented situation, are you obliged to stop and take an interest in this person?