General "trivia" meaning:
* Kuwentong walang kabuluhan (literally "story without importance")
* Walang kwentang impormasyon (literally "unimportant information")
* Mga bagay na walang halaga (literally "things without value")
For trivia questions:
* Mga tanong na pangkaraniwan (literally "common questions")
* Mga tanong na pampagsulit (literally "questions for a quiz")
* Mga tanong na hindi masyadong mahirap (literally "questions not too difficult")
For trivial things:
* Mga bagay na hindi mahalaga (literally "things not important")
* Mga bagay na walang halaga (literally "things without value")
* Mga bagay na pangkaraniwan (literally "common things")
The best translation depends on the specific context and meaning you want to convey.