Why do we say "tell the truth", but we don't usually say "tell the lies"?
Truth is specific and particular, hence the article 'the' is used.
On the other hand, lies are indefinite and can be anything other than the truth. Hence it is general and the article is not used.
not a teacher
We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, ...Perhaps collocability has something to do with it?
tell a lie
tell the truth
tell truths , but truths is English.
tell a truth , but a truth is English.
We seem to have posted at the same time Soup.
One truth, many lies