If you are getting bore using your system, I know it's quite impossible but if you are then type in Google search " I'm feeling curious ", you'll get info for you IQ and Knowledge.
e.g,
Based on landmass, Vatican City is the smallest country in the world, measuring just 0.2 square miles, almost 120 times smaller than the island of Manhattan. Situated on the western bank of the Tiber River, Vatican City's two-mile border is landlocked by Italy.
It will help you increase your knowledge, so lets ready for the fun. HAHA!