.:For One Day Soon the Dawn Will Come:.

Bull almost exclusively tells the unvarnished truth, really. But he tells the truths that lead you in the direction he wants. The big question with him is ultimately about where his deepest loyalties lay, and he doesn't actually lie about that, either. He just encourages avoidance of the question.

Varric lies constantly, but mostly in a very wink wink nudge nudge way, encouraging you to think of the lies as innocuous storytelling, so that the important lies go unexamined. So he cheerfully hides everything that's most important to him and is, you know, a fucken mob boss while always giving the "lovable uncle who deals under the table sometimes" vibe

Solas lies almost entirely by omission. Honesty and informed consent matter hugely to him, and he'll bend over backwards to tell the truth when directly questioned. He just tries to be vague and cryptic as much as possible to avoid any deeper investigations. And of course his go to "I saw it in the Fade" which is technically always true and thus actually meaningless.

And let’s not forget when the villains just switch sides. Last week this guy was on your side now he’s next to Wolverine and kicking your ass. 

“A variety of wild animals visiting a water fountain”