The number of a freeway. (Motorway)

What is the meaning of the following traffic sign?

1. The number of a regional road.
2. The distance to the nearest roadway (in k.p.h).
3. Correct answer: The number of a freeway. (Motorway)
4. The distance to the nearest intersection (in k.p.h).

What is the meaning of the road-sign?

1. Correct answer: Number of a main road.
2. Number of a Motorway (Freeway).
3. Distance to the nearest Junction.
4. Distance to the nearest road.