Can you solve it? The colourful truth about elves
by Alex Bellos from Science | The Guardian on (#5BM2Y)
Logic with Santa's little helpers
Here's a logic puzzle that was sent in to me by a (very smart) 12-year-old.
Four elves Glarald, Mnementh, Virthana and Tinsel are each wearing tunics of a different colour. At least one of these elves is a liar. (A liar is someone who says only statements that are untrue). During a break at elf school, the following conversation is overheard:
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