Athena Asks: Take the daily trivia quiz in this monthly email-based game. Top scorers each month make the winner's list.
Canals Of The World Trivia: Offers questions about the major canals of the world, color-coded for four difficulty levels. Includes answers and self-scoring.
Care2 Trivia: Offers monthly trivia quizzes on animals or the environment. Includes seasonal holiday quiz games.
Computer-O Quiz: Guess what the letter O stands for in each computer term in this sixteen question quiz.
Do the Dewey!: Dewey Decimal trivia game with biographical information on Dewey and an explanation of the system.
Driver's Test Trivia: Three interactive ten-question quizzes covering driving and the rules of the road.
Economist.com: Infrequently Asked Questions: Current affairs quiz offering multiple-choice questions and answers. A new question is added each weekday.
Flags of North America Quiz: Interactive trivia quiz that challenges users to identify the flag which matches the listed state or province.
GIS Quizzes: Collection of trivia quizzes on Geographic Information Systems. Every two weeks a new quiz is added covering a range of topics, current events and concepts in GIS.
Quiz Japan: Forty-five question trivia game introducing various aspect of Japanese culture including food, geography, language, and the arts. Includes player rankings and links.
Salmon Quiz: Interactive and educational quiz on salmon, relating to the environment and pollution. Offered in a Flash or non-Flash version.
Sheppard Software Trivia Quizzes: Selection of 20-question educational quiz games featuring a paragraph of explanation for each trivia question. Categories include animals, world countries, health, the twentieth century and U.S. Presidents.
Treebeard's Stumpers: Weekly brain stumper involving science, math, or logic, plus an archive of past stumpers and answers.