Wolf and Lamb
There are 3 wolves and 3lambs on the left side of the river.
There is a boat that can hold 2 animals at a time.
Unfortunately if there are more wolves than lambs on one side all the lambs onthat side will get killed.So how do you get all the animals across the river with out anyone getting killed.
Have 2 wolves go over.Have 1 wolf come backand get a lamb.Without the lamb getting out drop the wolf off.Then go back get another lamb and drop them off. Now there are 2 wolves and 2lambs on 1 side and 1 wolf and 1 lamb on the other.have 1 wolf from the right side go get the lamb from the left and then have it go get the other wolfon the left.