Not if the truth causes another person unnecessary pain. It's a case by case basis.

No. If we always told the truth, it would be too hard to find a mate. The world's population would severely shrink.

Harry Potter by 100000000%.  I wrote a response to a question asking the same thing about 6 months ago, so I'm just going to copy it into here.

HARRY POTTER!!!!  Twilight is full of sparkling vampires, 50 reasons to have a boyfriend, hot guys, and has so much more depth to the characters.  Not only that, … Read more