Mixed GK

Vijender Singh won India's first Olympic bronze medal in boxing at the 2008 Beijing Olympics in the 75kg middleweight category. This was a historic achievement as it ended India's long drought in Olympic boxing and inspired a new generation of Indian boxers. He became a household name and one of India's most celebrated athletes, leading to his career in professional boxing.

Randhir Singh served as the Secretary-General of the Indian Olympic Association for over 25 years (1987-2012), making him one of the longest-serving sports administrators in India. He was a prominent figure in Indian sports administration and represented India in various international Olympic forums. This question references the timeframe around 2011 when he was actively serving in this position.

Condé Nast India launched GQ (Gentleman's Quarterly) in India in 2008, following the successful launch of Vogue India. GQ is a men's lifestyle and fashion magazine covering style, culture, politics, and entertainment. The India edition follows the same format as the international GQ editions while featuring Indian celebrities and content relevant to the Indian market. This expansion demonstrated Condé Nast's strategy of establishing multiple lifestyle publications in growing media markets.

This question references a 2011 timeframe but the information is now outdated and potentially incorrect. In 2011, the Chairman and MD of BPCL was R.K. Singh, who served in this position. However, this is time-sensitive factual information that has changed multiple times since then. For current or ongoing reference, such questions become obsolete quickly.

H.Y. Sharada Prasad served as the Media Adviser to Prime Ministers Indira Gandhi and later Rajiv Gandhi. He was a distinguished civil servant and played a key role in shaping media communication for the Prime Minister's Office. He was known for his eloquent writing and was instrumental in drafting speeches and managing media relations during his tenure spanning the 1980s.

Osteomalacia is a condition characterized by softening of the bones due to impaired bone mineralization, primarily caused by vitamin D deficiency. Vitamin D is essential for calcium absorption and bone health. Without adequate vitamin D, bones become weak and prone to fractures. This condition is different from osteoporosis (age-related bone loss) and is specifically related to the mineralization defect.

September 16 is celebrated as International Day for the Preservation of the Ozone Layer (Ozone Day), designated by the United Nations to commemorate the signing of the Montreal Protocol in 1987. This treaty aimed to phase out ozone-depleting substances. The day raises awareness about ozone layer protection and the success of international cooperation in addressing environmental issues. Teacher's Day is September 5 (India), while Doctor's Day varies by country (July 1 in India).

Hyponatremia (note: the question has a typo 'Hyponatremaia') is a metabolic condition characterized by low sodium concentration in the blood, specifically below 135 mEq/L. Sodium is a critical electrolyte that regulates fluid balance, nerve transmission, and muscle function. The condition name literally derives from Greek meaning 'deficient salt' in the blood. It can be caused by various factors including excessive fluid intake, certain medications, or underlying medical conditions.

James Harrison, an Australian inventor, developed the first practical refrigeration system in 1856. His vapor-compression refrigeration system became the foundation for modern refrigerators. The other options are inventors in different fields: Colt (firearms), Fleming (penicillin), and Mudt (not a recognized inventor).

The Birr is the official currency of Ethiopia. It has been Ethiopia's monetary unit since 1945, though the name and system have earlier historical roots. The other options: Ngultrum (Bhutan), Dinar (Algeria), and Lek (Albania).

Ice hockey is played on a rink, not a ring. The incorrectly matched pair is Ice hockey - Ring. All other pairs are correctly matched: Badminton (court), Boxing (ring), and Skating (rink).

Velavadar National Park, officially known as Blackbuck National Park, is located in Gujarat state, India. It was established in 1976 specifically for the conservation of blackbucks. Option B has a typo (Mharashtra).

Ireland and Ivory Coast have similar flag designs - both are vertical tricolors with the same three colors (green, white, orange) but in reverse order. Ireland: green-white-orange (left to right). Ivory Coast: orange-white-green. This makes them uniquely similar among world flags.

Paleontology is the scientific study of fossils, including fossilized plants, animals, and other organisms. It helps us understand evolution and prehistoric life. The other options: homology (similarities from common ancestry), phrenology (discredited skull theory), and peunology is not a recognized scientific term.

Rheology is the study of the deformation and flow of matter, including liquids, gases, and soft solids. It examines how materials respond to applied forces. The other options: Radiology (medical imaging), Seismology (earthquakes), Craniotomy (surgical procedure).

Mihir Sen became the first Indian to swim across the English Channel in 1958. He was a famous long-distance swimmer who later swam across other major waterways worldwide. This achievement was a milestone in Indian sports history.

The first medical college in India was established in Calcutta (now Kolkata) in 1835 as the Medical College Bengal. It was founded by Lord William Bentinck and is now known as Calcutta Medical College, a prestigious institution.

NCERT was established in 1961 as an autonomous organization under the Government of India to assist and advise the central and state governments on policies and programs for qualitative improvement of school education.

The Food and Agricultural Organization (FAO), a specialized agency of the United Nations, has its headquarters in Rome, Italy since 1951.