Hard Quiz

[bowlingman]

In which language are the majority of mobile phone calls made?

[TheWinner]

I would guess at Japanese. It is not an answer just my guess.

[TheWinner]

http://www.japanvisit....php?cID=359&pID=1099

[HowardKennitby]

Obviously the language spoken by the greatest number is not automatically the correct answer but this might give a starting point.

http://en.wikipedia.o...er_of_native_speakers