LUCKNOW: Mathematician Anand Kumar was Monday conferred with the Swami Brahmanand Award 2021 for his contribution in the field of education through his 'Super 30' initiative, which prepares underprivileged students for the IIT entrance exam.

The 2021 US Open was the 141st edition of tennis' US Open and the fourth and final Grand Slam event of the year. It was held on outdoor hard courts at the USTA Billie Jean King National Tennis Center in Flushing Meadows, New York City. Daniil Medvedev won the men's singles title.

The Central Government on June 24, 2022, appointed senior IPS officer Tapan Kumar Deka as the Director of the Intelligence Bureau (IB).

Congo is the only major river which crosses the equator twice. It is the second largest river in Africa after Nile and the second largest river in the world.

The river that is often referred to as the "lifeline of European trade" is (B) Rhine. The Rhine River is a major waterway in Europe that flows through several countries, including Germany, France, the Netherlands, Switzerland, Austria, and Liechtenstein. It plays a crucial role in the transportation of goods and is an important trade route, earning it the designation as the "lifeline of European trade."

The world's highest waterfall is located in (B) Venezuela. The waterfall is named Angel Falls (Salto Ángel in Spanish), and it is situated in the Canaima National Park in the Gran Sabana region of Venezuela. Angel Falls is renowned for its impressive height, with a continuous drop of about 3,212 feet (979 meters) and a total height of 3,281 feet (1,000 meters).

The headquarters of the United Nations Industrial Development Organization (UNIDO) is situated in Vienna, Austria. UNIDO is a specialized agency of the United Nations that focuses on promoting and accelerating industrial development in developing countries. It works to enhance economic growth, reduce poverty, and improve living standards by fostering sustainable industrialization. The choice of Vienna as the headquarters reflects the city's historical significance as an international diplomatic and organizational hub.

The smallest continent is Australia. Therefore, the correct answer is (A) Australia. Australia is both a country and a continent, and it is often referred to as the "smallest continent" due to its relatively small landmass compared to other continents.