Explanation

• Burj Khalifa is located in Dubai, United Arab Emirates.
• Floors: 163
• It is the world’s tallest building.
• Height: 828 meters (2,717 feet)
• Construction began in 2004 
• Opened: January 4, 2010

List of the tallest buildings in the world.

Explanation

• Agency: Ministry of State Security (MSS)
• Chinese name: Guójiā Ānquán Bù (国家安全部)
• Also known as: Guoanbu
• Established: 1 July 1983
• Headquarters: Beijing, China
• Main role: Civilian intelligence and counterintelligence agency.
• Motto: “Serve the people firmly and purely, reassure the Party, be willing to contribute, be able to fight hard and win.”

Last updated: NA on 26-09-2026

Explanation

• The common ostrich (Struthio camelus) is the biggest bird in the world.
• It is weighing up to 344 pounds (157 kilograms) and standing 9 feet tall.
• Female ostriches lay the largest eggs of any living bird.
  

• The world’s fastest bird is the peregrine falcon.
• The white bellbird is the world’s loudest bird.

Last verified on 01-07-2026

Explanation

• Country: Afghanistan 
• National Airline: Ariana Afghan Airlines
• Founded: 27 January 1955
• Headquarters: Kabul
• Also known as: Ariana Afghan Airlines (ARIANA)
• Status: State-owned and the oldest airline in the country.

Last updated by NA ON 16-09-2026

Explanation

• The Sahara Desert is the largest hot desert in the world.
• Location: Africa
• Length: Approximately 4,800 km (3,000 miles)
• Area: About 9.2 million km²

List of top deserts in the world:

Last verified on 10-05-2026