Explanation

• Country: China
• Founded: 2000
• Headquarters: Beijing
• Industry: Oil & Gas / Petrochemicals
• Ownership: State-owned enterprise

Last verified on 21-04-2026

Explanation

• The Berlin Wall fell on 9 November 1989.
• It separated East Germany and West Germany during the Cold War.
• The fall symbolized the end of division in Europe.
• It marked the beginning of the end of the Cold War.
• Germany was officially reunified on 3 October 1990.

Additional information:

• Start of construction → 13 August 1961
• Length of wall → 155 km
• Height → 3.6 meters

Last verified on 20-04-2026

Explanation

• The Earth’s atmosphere is divided into different layers (Troposphere, Mesosphere, and Exosphere).
• Hydrosphere refers to all water bodies on Earth.
• Therefore, Hydrosphere is not part of the atmosphere.

Additional information:

• Troposphere: 0–12 km (weather layer)
• Stratosphere: 12–50 km
• Mesosphere: 50–85 km
• Thermosphere: 85–600 km
• Exosphere: 600 km and above

Last verified on 21-04-2026

Explanation

• Date and Year: 1 September 1923
• Magnitude: ~7.9
• Death toll: 140,000+ people
• Affected cities: Tokyo, Yokohama, Kawasaki, Chiba, Shizuoka

Last verified on 21-04-2026

Explanation

• Establishment date: 24 April 1800
• Founder: John Adams
• Location: Washington, D.C. (Capitol Hill)
• Number of buildings: 3
• Country: United States

Last verified on 21-04-2026

Explanation

• Modern state established: 1925
• Islamic Revolution: 1979
• Constitution: 1979
• Qajar Dynasty ended: 1925
• Safavid unification: 1501

Last verified on 21-04-2026

Explanation

• Full form: Press Trust of India (PTI)
• Country: India
• Established: 1947
• Headquarters: New Delhi
• Type: News Agency

Additional information:

• Pakistan: Associated Press of Pakistan (APP)
• USA: Associated Press (AP)
• Britain: Reuters 
• Syria: SANA (Syrian Arab News Agency)
• Kuwait: KUNA (Kuwait News Agency)

Last verified on 18-01-2026

Explanation

• Harold Pinter was a famous British (UK) playwright, screenwriter, and actor.
• He was known for his unique writing style called “Pinteresque.”
• Nobel Prize field: Literature
• Award year: 2005
• Born: 1930
• Died: 2008

Last verified on 21-04-2026

Explanation

• Major construction period: 246–210 BC
• Qin Dynasty ruler: Qin Shi Huang
• Purpose: Defense against invasions (especially Mongols)
• Total length (modern estimate): ~21,000 km
• Construction phases: 7th century BC to 16th century AD (multiple dynasties)

Last verified on 21-04-2026

Explanation

• Human population (2016): 24 million
• Estimated kangaroos: 44 million
• Kangaroo types: Red, Eastern Grey, Western Grey, Antilopine
• Country: Australia
• Status: National animal of Australia

Last verified on 21-04-2026