Three jars are labeled 'Lemon Drops', 'Cherry Drops', and 'Mixed Drops'. Every jar is mislabeled. You may pick a single candy from only one jar without looking inside. Which jar must you choose from to guarantee you can correctly relabel all three jars?
The jar labeled 'Mixed Drops'
Since all labels are wrong, the jar labeled 'Mixed Drops' cannot contain a mix; it must contain exclusively Lemon or exclusively Cherry. Drawing one candy reveals its true single content. Once that jar is correctly identified, the remaining two mislabeled jars can be logically deduced by elimination.
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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