Mathematics, 17.04.2020 07:08 kalbaugh

A young girl has a brother and a sister. The brother lies every Monday, Tuesday and Wednesday and the other days he speaks the truth. The sister lies on Thursdays, Fridays and Saturdays, and the days if the week she speaks the truth. “Yesterday I was lying” the brother told the girl. “So was I” said the sister. What day was this?

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