In which of the following cities was India’s first Namo Book Festival held?

Recently, Bamanwas Kankar has become the first organic panchayat of which of the following states? 

In which state is the Thanthai Periyar Wildlife Sanctuary located, where the All India Tiger Census 2026 has been launched?

In which of the following countries have marine scientists discovered a giant black coral that is 300 years old?

On which of the following days is National Startup Day celebrated every year?