Two Doors, Two Guards Riddle - Hard Riddles

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The Two Doors, Two Guards Riddle

You are standing in front of two doors.

There are also two guards:

You can ask only ONE question to only ONE guard to figure out which door leads to freedom.

What do you ask? 😈

Hint:

Since one guard always lies and one always tells the truth, any direct question will give you an unreliable answer. 😈

To outsmart them, think about how you can use their own logic against them.

Try asking a question that forces both guards to give the same answer, no matter who you ask.

Answer

To guarantee the correct answer, you should ask either guard this question:

“If I were to ask the other guard which door leads to freedom, what would they say?”

Then, choose the opposite door! 🚪

If you ask the Truthful Guard, he knows the Liar would point to the wrong door, so he truthfully tells you that wrong answer.
If you ask the Liar, he knows the Truthful Guard would point to the right door, but since he always lies, he gives you the wrong answer instead.
In both cases, you get pointed to the wrong door—so you simply choose the opposite one!

✔ Ask: “If I were to ask the other guard which door leads to freedom, what would they say?”
✔ Take the opposite door!