Sindhi is considered one of the oldest regional languages of Pakistan with ancient roots traceable back to the Indus Valley Civilization era.

Zakat is the third pillar of Islam (the compulsory almsgiving), so Zakat is the correct answer.

Tiktok was launched in 2016, so the correct year is 2016.

44 million is correct because the 2016 estimates counted about 44 million kangaroos in Australia compared with 24 million residents.

The 2016 Summer Olympics were awarded to and subsequently held in Rio de Janeiro, Brazil [2, p21]. The International Olympic Committee made this decision in October 2009, making Rio de Janeiro the first South American city to host the Summer Olympics.

Jin Liqun, a former Chinese vice-minister of finance, became AIIB’s first president at its launch in January 2016.

The IMF’s SDR basket added the Chinese yuan as its fifth currency in 2016.

The QCG was formed in 2016 to coordinate efforts on Afghanistan’s peace process, bringing together Afghanistan, Pakistan, China, and the United States.

Pakistan’s ambassador in Vienna formally submitted the NSG membership application on 19 May 2016[8](https://timesofindia.indiatimes.com/world/pakistan/pakistan-applies-for-nsg-membership/articleshow/52364256.cms).

Prime Minister David Cameron called and oversaw the June 2016 referendum, after which he resigned following the Leave vote.