define 'lies' and 'truths'. What context are we talking about? Are we defining truthfulness based on what the speaker thinks? Truth independent of individual beliefs? Are we taking into account intents?
Also, I am curious... Where did this question come from?
Lies often have short tracks, as the majority of our species is about as good at lying as your average dog but yes, sometimes it's better to lie than not to. Like when the phone salesman calls you. It's 4am, I won't even try making sense.