A river riddle:
8 people need to cross a river in a boat that is waiting readily at the side where they all stand. A family with father, mother, 2 daughters and two sons and a policeman guarding a thief.
– Only the parents and the poliecman can operate the boat.
– The thief is never to be alone with any family member if the policeman is not present.
– The Father is not allowed to be alone with his daughters without the mother present and the mother is not allowed to be alone with her sons if the father is not present.
– The boat can not move from one side to the other on its own and it can hold a maximum of two people.
How can you get all people to the other side without causing problems?