I have 3 kids, 13, 8 and 6.  I continually have problems with them lying and then "nobody did it".  It wasn't me.... That's the answer, doesn't matter what it is.  Also, I have problems with 2 of them teaming up against the 3rd.  Usually one of the two older ones and the youngest teaming up agains the other.  I have no idea who is telling the truth and who is lying!  Any suggestions on getting to the root of the problem?  I have tried punishing all of them, that usually gets someone to admit but I'm never sure if they are the real culprit or just trying to get rid of the punishment.  My mind is boggled.