International Darwin Day is celebrated every year on which of the following days?

Who among others has been selected along with Dr. R. Venkatesh for the prestigious Chang-Crandall Humanitarian Award 2026? 

In which of the following states has the foundation stone of Sharda River Corridor Project been laid to boost economic activity, religious tourism and employment? 

Which birth anniversary of famous freedom fighter Sarojini Naidu was celebrated on 13 February 2026?

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