iKnow

iKnow is a colourful quiz game for two to four players (or test yourself!), featuring over 4,000 multiple choice questions in 16 categories.

Three types of quiz game are included, and you can also create your own sets of questions using the supplied editor.
What's new in this version:
Repackaged for OS X with full-sized icon. Default set of questions corrected to avoid error on startup, which previously required a trip to the Topics dialog to fix.