Which of the following countries recently launched a nuclear-powered submarine called Khabarovsk?

On which of the following days is National Black HIV/AIDS Awareness Day observed every year?

Where was the Asian Shooting Championship held in which Manu Bhakar won the silver medal?

Soraya Aghaei Hajiagha has become the first woman from which country to be appointed to the International Olympic Committee (IOC)?

Recently, the Ministry of Statistics has changed the base year of Consumer Price Index from 2012 to which year?