Explanation

• The headquarters of Amnesty International (AI) is located in London, United Kingdom.
• Founded: 1961
• Founder: Peter Benenson
• Members & Supporters: More than 7 million
• Presence: Over 150 countries
• Main Purpose: Protection and promotion of human rights
• Nobel Peace Prize: 1977
• Awarded for: "Worldwide respect for human rights."

Last verified on 18-07-2026

Explanation

• 22 April is celebrated as  World Earth Day
• The event first began in the United States on April 22, 1970
• Theme 2026: Our Power, Our Planet 
• Next time: April 22, 2027

Additional information 

• World Environment Day is on 5 June.
• Earth Overshoot Day is observed on August 22

Last updated 17 july 2026 by NA

Explanation

• 24-karat (24K) gold is considered the "best"
• Purity: 99.9% pure gold.
• Color: Rich, deep, bright yellow.

Additional information

• 22K Gold: 91.7% pure gold. It is mixed with harder metals like silver or copper.
• 18K Gold: 75% pure gold. It is highly durable and excellent for diamond settings 
• Carat is the unit of measurement for the physical weight of diamonds/gold.

Last updated by NA on 16-07-2026

Explanation

• Alt + Shift + F1 / Shift + F11 → Insert a new worksheet

Additional information:

• Shift + F10 → Open shortcut/context menu
• Ctrl + Page Up → Previous worksheet
• Ctrl + Page Down → Next worksheet

Last verified on 15-07-2026

Explanation

Last verified on 30-04-2026

Explanation

• Ctrl + K → Insert Hyperlink

Additional information:

• Ctrl + P → Print
• Ctrl + F2 → Print Preview
• Ctrl + H → Replace dialog box
• Ctrl + D → Font dialog box

Last verified on 06-07-2026

Explanation

• The Durand Line was established as the official border between British India and Afghanistan.
• It was drawn in 1893.
• British representative: Sir Mortimer Durand
• Afghan ruler: Amir Abdur Rahman Khan
• It later became the international border between Pakistan and Afghanistan.
• Length: Around 2,640 km

Last verified on 09-06-2026

Explanation

The name "Muhammad" appears four times in the Quran.

1. Surah Al-Imran (3:144)
2. Surah Al-Ahzab (33:40)
3. Surah Muhammad (47:2)
4. Surah Al-Fath (48:29)

Additional information:

The name "Ahmad" is mentioned once in the Quran:

1. Surah As-Saff (61:6)

Surah Muhammad is the 47th surah of the Quran.

• It has 38 verses.

Last verified on 25-04-2026

Explanation

• Khadijah bint Khuwaylid (RA) was the first woman to accept Islam.

Additional information:

• First adult man: Khadijah bint Khuwaylid (RA)
• First Child: Ali ibn Abi Talib (RA)
• First Freed Slave: Zayd ibn Harithah (RA)
• First Slave: Bilal ibn Rabah (RA)

Last verified on 07-07-2026

Explanation

• Hussein Ibrahim Taha is the Current Secretary-General of OIC.
• He is elected for a five-year term starting 17 November 2021.
• He belongs to the Republic of Chad.
• 
  

Last verified on 18-03-2026