Rule 1: Every leaf that turns purple in fall comes from a Sweetgum tree. Rule 2: Every tree planted on the west side of the park is either an Oak or a Maple. A leaf found on the west side of the park is purple. Is this leaf from an Oak, a Maple, or is there a contradiction?
There is a contradiction.
By Rule 1, a purple leaf must come from a Sweetgum tree. By Rule 2, only Oak and Maple trees grow on the west side. Therefore, a purple leaf cannot naturally exist on the west side under these rules.
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: Easy. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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