- Help the man on the boat move Wolf, Sheep and Cabbage across the river. Each move attaches to only one animal or object, when the man is not nearby, the Wolf will eat the Sheep, and the Sheep will eat the Cabbage.
- Help a family of 5 people move across the river by boat, and the boat is capable of a maximum of 2 people carrying capacity. Time for travelling of each person in turn is 1 second, 3 seconds, 6 seconds, 8 seconds, and 12 seconds. If two people both go on the boat, the boat will travel at the speed of the slower person. In 30 Seconds please bring the whole family across the river.
- Three couples go picnic together. They must move across a river with only one boat carrying a maximum of 2 people. Help them move across the river, provided that husbands would not allow their wives to go with another man without their presence there.