In which year the World Happiness Index was first time published?
A. 2009
B. 2010
C. 2012
D. 2013 (more…)
Saltiest sea of the world is _________?
A. Red sea
B. Yellow sea
C. Mediterranean sea
D. Black sea
Which Muslim country has the highest per capita income?
A. Qatar
B. Kuwait
C. Saudi Arabia
D. None of these