You could use the hint column for the number of speakers, or delete it entirely. Is this quiz about native speakers or total number of speakers? And please allow Azeri for Azerbaijani and Cantonese for Yue.
Fixed the issues! This quiz is based on the most commonly spoken languages in the world, not in a specific order. I couldn't fit all of the most commonly spoken ones, so I just typed the 50 most common.
I appreciate the feedback!