I just received from a friend of mine a really interesting and challenging test. This is the Japanese IQ hiring test, an IQ test used in Japan for hiring employees in the IT sector. An average person should complete it in about 15 minutes. To start playing click on the image below.
Instructions:

To START click on the Blue circle

1. Maximum of two people can go on the float.
2. Father cannot be with any of his daughters without the mother being present.
3. Mother cannot be with any of her sons without the father being present.
4. The prisoner cannot be alone (without the policeman) with any member of the family.
5. Only the policeman and parents can drive the float.

Click on the person to load and unload.
To cross the river, click on the red head on a pole on the other bank.
Your objective is to move all the people to the other side of the river.

Good luck!!

Press here to start playing!