A farmer has a wolf, a goat, and a cabbage to cross a river in a small boat that can only hold the farmer and one item at a time. If left unattended, the wolf eats the goat, and the goat eats the cabbage. How many one-way boat trips does it take to cross safely?
7 trips
Take the goat across (1), return alone (2), take wolf or cabbage across (3), bring goat back (4), take the other item across (5), return alone (6), and take the goat across last (7).
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Medium. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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