If there were two angels and 1 was guarding heaven, and the other was
guarding hell, and one of them always lied and the other one always
told the truth, and you could only ask one of them one question
regarding which entrance was the way into heaven. What would the one
question be?

Hello Fara and thanks for your question.

The question would be:

"What door would the OTHER angel tell me to go through?" (Listen to
his answer, and then walk through the opposite door!)

Explanation: The Angel that always lies would lie, by saying something
like.... "That other angel will tell you to go thru this door" (Which
is a lie in itself, remember- He ALWAYS LIES & can NEVER tell the
truth) Therefore, your recourse should be the wise move by going
through the OTHER door.

And likewise, the angel that always tells the truth would tell the
truth, looking toward his counterpart and saying.... " Him? Why he
would tell you to go through this door!"
I found the riddle at this website
http://www.geocities.com/wordwarriah/riddle.htm

Search Criteria:
riddle angel lie truth heaven hell


I hope this answers your question!  

Best Regards,
Bobbie7-ga