Which of these African rivers flows both to the north and the south of the Equator?

The Congo River is a river in Africa. It is the second largest river in the world by discharge (after the Amazon), and the world's deepest river with measured depths in excess of 220 m (720 ft). The Congo-Chambeshi river has an overall length of 4,700 km (2,920 mi), which makes it the ninth-longest river. It crosses the equator twice. The Congo Basin has a total area of about 4 million km2, or 13% of the entire African landmass.

Because its drainage basin includes areas both north and south of the equator, its flow is stable, as there is always at least one part of the river experiencing a rainy season. It also flows north across the Equator and then south across the Equator on its journey to the South Atlantic Ocean.

The Congo flows generally toward the northwest from Kisangani just below the Boyoma falls, then gradually bends southwestwards, passing by Mbandaka, joining with the Ubangi River, and running into the Pool Malebo (Stanley Pool). Kinshasa (formerly Léopoldville) and Brazzaville are on opposite sides of the river at the Pool, where the river narrows and falls through a number of cataracts in deep canyons (collectively known as the Livingstone Falls), running by Matadi and Boma, and into the sea at the small town of Muanda.