Under the leadership of which of the following, the Cold Response military exercise is being organised by the North Atlantic Treaty Organisation (NATO)? 

At which of the following places was India’s first microalgae air tower installed to fight highway pollution? 

Which of the following states has secured the first position in implementing the Inter-operable Criminal Justice System?

At which of the following places will the world’s first OTEC-based desalination plant using deep sea water be set up? 

Between which country and South Korea was the Freedom Shield military exercise conducted?