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Liar Truth-Teller Logic Puzzle

1000BeginnerCombinatorics

South African Mathematics Olympiad First Round

Devious Steve either lies for the whole day or tells the truth for the whole day. Which one of the following statements can he never say? (A) "Yesterday I told the truth" (B) "Yesterday I lied" (C) "Today I am telling the truth" (D) "Today I am lying" (E) "Tomorrow I shall lie"
0 students attempted0% solvedRating 1000

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