The Queen of Spades always lies for the whole day or always tells the truth for the whole day. Which of these statements can she never say?
Select one option, then click Submit.
“Yesterday, I told the truth”
“Yesterday, I lied.”
“Today, I tell the truth.”
“Today, I lie.”
“Tomorrow, I shall tell the truth.”
Select an option, then submit.
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Intermediate Mathematical Challenge 2006 (2006)
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