I am not sure about the Best one... there re so many options, try them Renkara Media Group, Inc. seem to have quite a few Trivia games, one being Entertainment Trivia for The Factual Intellectualâ„¢ Note : I am in No ways affiliated to the Devs, they may want to use me to promote their app EDIT : True or False Trivia Quiz : Amazing Facts is Free!
Ben Stein also has a Lite version, I had completely 4gottn about him, thanks to the invisible pages in OS 3.0 I also play Big Fat Lies, Lite version available