This critical thinking exercise presents a scenario where a person finds themselves facing two doors after death, one leading to paradise and one to damnation. Each door has a guard, but it is unknown which guard always tells the truth and which always lies. The person can ask one guard one yes or no question to determine which door leads to paradise. The question that should be asked is "According to the other guard, is this the way to paradise?". Whichever answer is received, the opposite door should be chosen. This is because the truthful guard would report the lying guard's answer, while the lying guard would give the opposite of the truthful guard's answer.

1. CRITICAL THINKING EXERCISE“THE CHOICE”DESIGNED BY CHARLES HENDERSON 2005

2. Imagine that when you die, you find yourself in a Room with two doors, one leading to paradise; the other to damnation. You can choose which door to walk through, but the problem is that the doors are unmarked.

3. Each door has a guard before it. You can ask eachguardone “yes” or “no”question. One of the guards will answer truthfully; the other will always lie.Unfortunately, there is no way of knowing which guard is which.

4. What question should you askone of the guardsto ensurethat you wind up in paradise?

5. A visual look at the scenarioDAMNATIONPARADISEGUARDGUARD?????

6. HERE IS THE QUESTION TO ASK:“According to the Other guard, this is the way to paradise?”

7. The answer you get will always be untrue,Because:The truthful guard will truthfully tell you the other guard’s lie.The lying guard will alwayssay the opposite of what the truthful guard would say..

8. So if the guard says the door does notlead to paradise, you know it doesIf the guard says the door doeslead to paradise,you know it does not.

9. TRUEGUARDT=LYINGGUARDL=

10. (“According to the otherguard, this is the way to paradise?”)Scenario TwoScenario OneParadiseDamnationParadiseDamnationTLTLAnswerNNYY

11. ParadiseParadiseDamnationDamnationTLLTNNYYNOTICE THAT THE ANSWER WILLALWAYS BE “NO” IF EITHER GUARD STANDS BEFORE THEPARADISE DOOR