A man went on a trip with a fox, a goose and a sack of corn. He came upon a stream which he had to cross and found a tiny boat to use to cross the stream. He could only take himself and one other - the fox, the goose, or the corn - at a time. If he could not leave the fox alone with the goose or the goose alone with the corn. How does he get all safely over the stream?

Why this works

This riddle is a classic logic puzzle that involves careful planning and understanding of what can and cannot be left together. The man must ensure that the fox doesn't eat the goose and that the goose doesn't eat the corn when he isn't there. The solution involves a series of strategic moves: First, he takes the goose over to ensure it's safe, then he returns alone. Next, he takes the fox over, but he can't leave the fox with the goose, so he brings the goose back with him. He then takes the corn over (which is safe with the fox) and returns alone. Finally, he brings the goose over again. Each step is crucial in preventing any unwanted pairings, and the sequence ensures that all three items are safely transported across the stream!