How much general knowledge do you have? Put your brain to the test with these 26 questions covering everything from science ...

As we celebrate the nation’s 250th birthday, test your civics knowledge and see how your score compares to others.

VocabOwl’s viral vocabulary test turns 100 multiple-choice questions into a shareable estimate of your English word knowledge, but the clever scoring system still leaves room for guessing and ...

It's time for the Earth Day quiz! Get green and test your knowledge of the environment, the oceans, animals, climate change and more. Since the very first Earth Day in 1970, April 22 has grown to ...