General Knowledge

The White House is the official residence and workplace of the President of the United States, located in Washington, D.C., U.S.A. Therefore, option B is correct.

Humpback whales produce some of the loudest sounds of any living creature, with calls reaching up to 188 decibels underwater, which is louder than the sounds produced by donkeys or monkeys. This makes them the correct answer for the loudest animal sound.

The official theme of World Water Day 2022 was 'Groundwater: Making the Invisible Visible.' This theme focused on raising awareness about the importance of groundwater and its sustainable management. The option 'Better Water, Better Jobs' was the theme for 2016, not 2022. Therefore, the correct answer is option D.

The Islamic Revolution in Iran culminated in 1979 when the monarchy was overthrown and the Islamic Republic was established. This is the widely accepted and historically accurate date for the revolution.

Hillier Lake, also known as Lake Hillier, is a famous pink-colored lake located on Middle Island, off the coast of Western Australia. Therefore, it is located in Australia.

The theme of Earth Day in 2022 was 'Restore Our Earth,' focusing on natural processes, emerging green technologies, and innovative thinking to restore the world's ecosystems.

Blue Lake is famously located in New Zealand, specifically in the Nelson Lakes National Park. Therefore, the correct answer is New Zealand.

Mount Everest is the highest peak in the world, standing at 8,848.86 meters (29,031.7 feet) above sea level, making it the world's loftiest peak.

The Treaty of Sèvres was signed on 10 August 1920, marking the partitioning of the Ottoman Empire after World War I. This is confirmed by multiple authoritative sources including Wikipedia and Encyclopaedia Britannica. Therefore, the correct answer is option B (1920), not 1919 as originally stated.

The British Commonwealth of Nations was formally established by the Statute of Westminster in 1931, which granted legislative independence to the dominions of the British Empire, marking the foundation of the Commonwealth as a political association.