Question: what are the four most commonly spoken languages in the world?
Answer: English (1,132 million speakers) ... 
Mandarin Chinese (1,117 million speakers) ... 
Hindi (615 million speakers) ... 
Spanish (534 million speakers) ... 
Arabic (274 million speakers) ... 
Bangla/Bengali (265 million speakers) ... 
Russian (258 million speakers) ... 
Portuguese (234 million speakers)