Explanation

• Carbon dioxide (CO₂) is used in fire extinguishers.
• It extinguishes fire by displacing oxygen and cooling the burning material.
• CO₂ fire extinguishers are especially effective for electrical and flammable liquid fires.
• Carbon dioxide is a colorless and non-flammable gas.
• It leaves no residue after use.

Last verified on 09-07-2026

Explanation

• Prophet Muhammad entrusted the key to Uthman ibn Talha (RA)
• This took place after the Conquest of Makkah (8 AH / 630 AD).
  
• The descendants of Uthman ibn Talha, known as the Al-Shaibi family
• The Prophet (SAW) declared the trust would remain with that family forever.
• The role of the keykeeper is called Sadanah al-Kaaba. 

Last updated by NS on 06-09-2026​

Explanation

• China's National People's Congress (NPC) is the largest parliamentary body in the world.
• It has more than 3,000 members.
• The NPC is China's highest organ of state power.
• It meets annually in Beijing.

Additional information:

• The parliament with the smallest membership is the Congress of the Federated States of Micronesia.
• It has just 14 members.

Last verified on 06-07-2026

Explanation

Explanation

• Quaid-e-Azam Muhammad Ali Jinnah was given the title “Ambassador of Hindu-Muslim Unity”.
• This title was conferred by Sarojini Naidu, a prominent Indian political leader and poet.
• At that time, Jinnah was working for unity between Hindus and Muslims.

Last verified on 13-01-2026

Explanation

• The Fat Man was dropped on Nagasaki, Japan.

  On August 9, 1945, at 11:01 AM.

Additional information:

The Little Boy type of bomb was dropped on the Hiroshima, Japan.

On 6 August 1945 during World War II.

• Hiroshima deaths: around 40000 
• Nagasaki deaths: around 80000

Last verified on 02-07-2026

Explanation

• Martial Law imposed: 7 October 1958
• Pakistan’s first Martial Law was imposed under the control of General Ayub Khan.
• President at the time: Iskandar Ali Mirza
• Prime Minister: Feroz Khan Noon

Additional information:

Last verified on 22-06-2026

Explanation

• World Water Day is observed every year on 22 March.

Additional information:

• First Observed: 22 March 1993
• Organized by: United Nations (UN)
• Theme 2021: 'Valuing Water'
• Theme 2022: "Groundwater, making the invisible visible".
• Theme 2023: Accelerating Change
• Theme 2024: Leveraging Water for Peace
• Theme 2025: Glacier Preservation
• Theme 2026: Water and Gender: Where water flows, equality grows

Last verified on 30-06-2026

Explanation

• Date: 10 December
• Date and Year of UDHR adoption: 10 December 1948
• Adopted by: United Nations General Assembly
• Document: Universal Declaration of Human Rights (UDHR)
• Purpose: Protection and promotion of human rights
• 2025 Slogan: "Human Rights, Our Everyday Essentials".

Last verified on 06-04-2026

Explanation

• Helvetia is the ancient Latin name for Switzerland.
• The name comes from the Helvetii, a Celtic tribe that lived in the region before Roman rule.
• Switzerland is a landlocked mountainous country in South-Central Europe.
• The name Helvetia is still used on Swiss coins and stamps.

Additional information:

• Capital: Bern
• Currency: Swiss Franc (CHF)
• Official Languages: German, French, Italian, Romansh
• Continent: Europe
• Government: Federal Republic

Last verified on 30-06-2026