Need help on perjury

A perjury charge may be brought when someone makes a false statement after being sworn in or promising to tell the truth in a legal situation. For instance, a person giving testimony on the stand during a court case who tells a lie may be charged with perjury. Someone who lies during a deposition, or who lies on a signed declaration or affidavit can also be charged with this offense.
 

if three different witness give three differnt statments on the same incidentduring cross examinization will it be perjury ?