Tricky puzzle,comment down below if anyone has sloved this.The reason why i reblogged this is because I’m a massive doctor who fan.
The impossible girl
In The Pyramids of Mars, Sarah-Jane Smith is trapped. There are two switches, one of which will release her, one of which will kill her. There are two guardians, one of which tells the truth, the other always lying. The Doctor can ask one guardian one question. He asks,
“If I asked the other guardian which was the life switch, which would it indicate?”
The liar will lie about the truth-teller, and so indicate the death switch. The truth-teller will tell the truth about the liar, so indicate the death switch. The Doctor presses the other switch and Sarah is released.
John Finnemore did a sketch in which the guardians are fed up because everyone now knows what to ask- so they introduce a third guardian who strictly alternates, lying in one answer then telling the truth in the next. You will not know whether the alternator will lie or…
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