Old Macintosh Games

I'm looking for old retro games that can still be run on current OS X systems. Also for anyone who may remember I am looking for a game that i cant remember the name of. Was a trivia game, different levels of hardness, may or may not have had something to do with a frog, vague i know but im sure someone remembers it.

Try Pure Mac: Software for Macintosh and Free Mac Downloads - Softpedia but with a Macbook/Intel you may find it hard to locate older games that will operate with that setup.