Question: Which is the most populous city in the world? 

Answer: Shanghai It has an urban population of over 24 million people.

Question: Which country is the largest landlocked country in the world?

Answer: Kazakhstan 

Question: What number parallel north forms the border between North and South Korea? 

Answer: 38th parallel 

Question: DPRK is the abbreviation of the official name (in English) of which Asian country? 

Answer: North Korea Democratic People’s Republic of Korea