Explanation

• Main country: Botswana
• Region: Southern Africa
• Other countries: Namibia and South Africa
• Approximate area: 900,000 km²
• Type: Semi-arid sandy savanna

Last verified on 05-10-2026

Explanation

Every year, the United Nations Day is celebrated on 24 October to mark the anniversary of the UN charter, which came into force in 1945.

Explanation

• The Pentagon is the headquarters of the United States Department of Defense (DoD).
• It is located in Arlington County, Virginia, near Washington, D.C.
• Construction started: 11 September 1941
• Completed: 15 January 1943
• It was constructed on an accelerated schedule during World War II.
• The building has 7 floors, including 2 underground levels.
• Architects: George Bergstrom and David J. Witmer.

Last verified on 04-10-2026

Explanation

• Charles Babbage is known as the Father of the Computer.
• He designed the more advanced Analytical Engine, which featured a "Mill" (CPU) and a "Store" (memory).

Additional information:

• He was an English polymath.
• Born: 26 December 1791 London, England
• Died: 18 October 1871 (aged 79) London, England

Last updated by NA on 06-11-2026

Explanation

• UNICEF works for the rights and well-being of children.
• UNICEF stands for United Nations Children’s Fund.
• It was established in 1946.
• Its headquarters is in New York, USA.

Additional information:

• UNESCO: Education, science and culture
• UNHCR: Refugees
• UNCTAD: Trade and development

Last verified on 30-09-2026

Explanation

• The capital of Brazil is Brasília.
• Inaugurated: April 21, 1960
• Previous capitals: Rio de Janeiro (1763–1960) and Salvador (earlier colonial period)
• Largest city: São Paulo

Additional information:

• Currency: Brazilian Real (BRL)
• Official Language: Portuguese
• Continent: South America
• Major Religion: Christianity
• National Sport: Football (Soccer)
• Parliament: National Congress
• Independence Day: 7 September
• Independence Year: 1822

Last updated: 27 OCT 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

• Switzerland is known as the playground of Europe.
• This nickname highlights its diverse landscapes, from high peaks to pristine lakes

Additional information 

• The capital is Bern.
• The currency is the Swiss Franc.
• official language is German; French; Italian.
• Continent Europe.
• Religion is Christianity.
• Parliament called Bundesversammlung.

Last updated: 20-09-2026 by NA

Explanation

• Europe is the only continent without a desert.
• It has a temperate climate with sufficient rainfall.

Additional information:

• Divided by the Ural Mountains
• Second-smallest continent
• Covers 2% of Earth’s surface
• Area: 10.18 million km²

Last verified on 16-01-2026

Explanation

• BCC stands for: Blind Carbon Copy
• Used in: Email communication
• Purpose: Hides recipient email addresses from other recipients

Additional information:

• CC (Carbon Copy): Recipients are visible to all
• BCC: Recipients are hidden from everyone except the sender

Last verified on 16-01-2026