[New Door]

One word

[New Beginnings]

Offspring

[The liar, the truth teller....and the random answerer]

What if I  ask A if they feel bad when they lie?...if they can't  answer (because  they never lie) then they must be the truth teller.

    If they answer yes or no then ask B the same question... again if they can't  answer they are the  truth teller...

   If they answer  yes or no then C is the truth teller...

SO  NOW ASK THE TRUTH TELLER IF (A) IS THE LIER...HIS ANSWER SHOULD  SOLVE THE  ISSUE !!!