Here's a short and sweet Q-and-A for today's mentalfloss.com Brain Game Think Thursday challenge. Good luck!

Though it's only 14th-largest by land area,
what African nation is home to over 150 million
people, making it almost twice as populous as
the next-most inhabited nation on the continent?

Here is the ANSWER.

THE ANSWER:

NIGERIA.

Thanks for playing! Tomorrow, it's Free-for-All Friday.