Over the last two centuries, advances in computer technology have transformed the way we live our lives. How much do you know about these icons of the industry?

Test your knowledge of some common and unusual phobias with these multiple choice questions...

Our planet is full of fascinating creatures with unique characteristics and often awe-inspiring abilities. Test your knowledge of the animal kingdom with these multiple choice questions.

Various scales and charts have been developed to measure everything from the pungency of peppers to the intensity of earthquakes. Test your knowledge of some of them with these multiple choice questions...