1. Today is being celebrated as which day all over the world?
Answer: World Hindi Day

2. Prime Minister Narendra Modi has announced to observe 26 December every year as which day to pay homage to the four sons of the 10th Guru of Sikhs, Govind Singh?
Answer: Veer Children's Day

3. Former RBI Governor Urjit Patel has been appointed as the Vice-Chairman of?
Answer: AIIB

4. World's number one tennis player Ashleigh Barty has won which title for the second time in three years?
Answer: Adelaide International Tournament

5. Which company has been set up by the Adani Group for the new energy business?
Answer: Adani New Industries Limited

6. Who has been appointed as the new Secretary General of the Organization of the Petroleum Exporting Countries (OPEC)?
Answer: Haitham Al Ghis

7. Who has been re-appointed as the Chairman of Commission for Agricultural Costs and Prices by the Central Government?
Answer: Vijay Paul Sharma

8. Which country has announced to ban the marriage of a girl younger than 18 years by making a law?
Answer: Philippines

9. Which Telugu film actor has passed away at the age of 56 due to liver disease?
Answer: Ramesh Babu

10. Spanish tennis star Rafael Nadal has won the 89th title of his career by winning which trophy?
Answer: Summer Set One Tournament (Melbourne)