On which of the following days is World Mosquito Day observed every year?

Which of the following state governments has imposed an ‘orphan and widow cess’ of 60 paise per litre on petrol and diesel to help orphaned children and widows?

At which of the following airports was the joint ‘Sudarshan Shakti-V Exercise’, aimed at dealing with a hijacking scenario, conducted? 

Who is the author of the book ‘Bringing the Cheetah Back to India’, which has been in the news?

Which birth anniversary of Sri Aurobindo was celebrated on August 15, 2026?