Add Yahoo as a preferred source to see more of our stories on Google. Whether you want to buff up your knowledge or simply quiz your friends, these brain stumpers will give your mind a real workout.

Test your logic and knowledge with this fun quiz challenge featuring tricky questions about history, geography, space, and ...

This 27-question language quiz will challenge your knowledge of synonyms, homophones, commonly confused words, semantic groups, and idioms. In each of the questions, 3 out of 4 words share a special ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." As you start decking the halls this holiday season, it might be time to take a break from all the baking ...

Get all three sports-related questions of varying difficulty (easy, medium and hard) and you claim the Herald hat-trick. Quiz compiled by Cameron McMillan. Want more quizzes? Test your knowledge in ...