# What question can Tanmay ask to get to the fields of rewards and not death?

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Tanmay is in a cave. He stops to find two tunnels.
There is a guard before each tunnel.
Tanmay knows two things:
1. One tunnel leads to the fields of punishment and the other fields of rewards
2. One guard always lies and the other always tells the truth.
Tanmay can only ask one yes or no question to either one of the guards.
The tunnels and guards look exactly the same.
What question can Tanmay ask to get to the fields of rewards and not death?

posted Sep 28, 2018

+1 vote

The question should involve both guards so that right and wrong answers bring desired result.
"Would the other guard say that this tunnel is the field of rewards?"
If the guard who tells the truth- If he says yes, then that tunnel is the field of punishment, because the lying guard would say yes, meaning it was no. If he says no, then that tunnel is the field of reward. Same applies to the guard who always lies.

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