This story was originally featured on Fortune.com
Follow us on Twitter @BBCAfrica, on Facebook at BBC Africa or on Instagram at bbcafrica，更多细节参见Line官方版本下载
Looking for other daily online games? Mashable's Games page has more hints, and if you're looking for more puzzles, Mashable's got games now!，推荐阅读下载安装汽水音乐获取更多信息
7-day free trial, then $54.99/month for 1 month