1. What is the name of the third largest ocean in the world? The Indian Ocean
2. What is the capital of the People's Democratic Republic of Yemen? Aden
3. What is the equator? The imaginary line that stretches around the Earth separating the Northern and Southern Hemispheres. It is also known as the 0 degree latitude line.
4. What is the capital of the only state that shares part of its borders with Iowa, Nebraska and Minnesota? Pierre, South Dakota