Heerat starts from point A and walks 2 km towards east. She then takes a left turn and walks 2 km. She takes another left turn and walks 2 km. She takes a final left turn and walks 5 km to reach a point B. How far (shortest distance) and towards which direction should she walk in order to reach point A again? (All turns are 90-degree turns only.)

A person walks 6 m straight, turns right and walks for 12 m, then turns right again and walks for 9 m. If he is now facing the South direction, in which direction was he facing when he started his journey?

Rehan leaves his home and walks 5 km South, then turns left and walks 6 km, then turns right and walks 3 km to reach his office. What is the shortest distance between his home and office?