pixabay.com When you look at the Solar System and count from the Sun outwards, what’s the sixth planet?
wikipedia.org According to Greek mythology, every soul had to cross a river on its way to the underworld. It was one of the five biggest rivers in Hades. Its name was:
wikipedia.org The goal of Operation Rolling Thunder conducted by the US against Vietnam was to destroy Vietnam's infrastructure, industrial supply base and counter-air defence network. When did it take place?
bigstockphoto.com Science If you get 10 points you're well-educated. If you get 12 - you're an expert!
