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Yes!!! You are right shabbir
Assuming that both know who tells the truth and who lies, ask anyone:
Which door will the other person show me if I ask him to show me the
life door?
And then choose the other door from the answer to the above question.
Suppose L and D are doors. And T and F are people.
Ans from T: D (as T knows F will answer D (false) and T gives this
answer truly)
Ans from F: D (as F knows T till answer L (true) and F gives the
opposite answer falsely)
Since this gives D, we go for the other door L.
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