Question: what are the most common languages in world?
Answer: Mandarin Chinese (1.1 billion speakers) ... 
English (983 million speakers) ... 
Hindustani (544 million speakers) ... 
Spanish (527 million speakers) ... 
Arabic (422 million speakers) ... 
Malay (281 million speakers) ... 
Russian (267 million speakers) ... 
Bengali (261 million speakers)