Explanation

• The first mosque of Islam is Quba Mosque (Masjid al-Quba).
• Location: Medina, Saudi Arabia.
• Built by: The Islamic Prophet Muhammad in the 7th century.
• Established in 622 CE on the outskirts of Medina (Yathrib).
• Prophet Muhammad (PBUH) spent 14 days praying Qasr here.
• Prophet Muhammad (PBUH) led the first Friday prayer in this mosque.

Additional and Most Important information:

• Masjid-ul-Haram (Kaaba): The first mosque on earth.
• Masjid-e-Aqsa: Built much earlier, associated with Hazrat Sulaiman (A.S.).
• Masjid-e-Nabavi: Built after the Prophet arrived in Medina, not the first.

Last updated by NA on 09-0-2026

Explanation

• UNO Founded: 24 October 1945 (after World War II 1939–1945)

Additional information:

• UNO Stands for: United Nations Organization
• Headquarters: Manhattan, New York City
• Member States: 193 countries
• Official Languages (6): Arabic, Chinese, English, French, Russian, Spanish
• Motto: “It’s your world!” (commonly used awareness slogan)
• Pakistan Joined UNO: 30 September 1947

Last verified on 10-06-2026

Explanation

• Headquarters: Jeddah, Saudi Arabia
• OIC stands for Organization of Islamic Cooperation.
• Foundation Date: 25 September 1969
• Official Languages: Arabic, English, French
• Total Members: 57 countries
• First Summit: Rabat, Morocco
• Significance: Largest international organization after the UN.

Last verified on 10-05-2026

Explanation

• The primary function of an Operating System kernel is to manage hardware and system resources.
• It acts as a bridge between hardware and software applications.
• Kernel controls CPU, memory, and input/output devices.
• It ensures smooth execution of all programs.
• It is the core part of the operating system.

Last verified on 09-06-2026

Explanation

• Amino acids are the building blocks of proteins.
• Proteins are formed when amino acids join together by peptide bonds.
• Proteins are essential for growth, repair, and body functions.
• There are 20 standard amino acids used to make proteins.

Verified & Updated

Explanation

Work (in worker-days) = 15 × 12 = 180

Days for 10 workers = 180 ÷ 10 = 18 days.

Last verified on 13-11-2026

Explanation

Given:  

15 workers complete the work in 20 days  

Step 1: Find total work  

Total work = Number of workers x Number of days  

Total work = 15 x 20 = 300  

Step 2: Find workers needed for 10 days  

Let the required number of workers = W  

W x 10 = 300  

W = 300 / 10  

W = 30  

Last verified on 13-11-2026

Explanation

• Hardly had he reached when the train left.
• With “Hardly”, we use inversion (auxiliary before subject).
• Structure: Hardly + had + subject + past participle + when + past simple.
• It shows that one action happened immediately after another.

Last verified on 09-06-2026

Explanation

• - Currency: Turkish Lira (TRY)
• - Current Currency: Second Turkish Lira
• - Introduced: January 1, 2005
• - Replaced: First Turkish Lira
• - First Turkish Lira: Replaced the Ottoman Lira in 1923.

Additional information

• - National Flag: Red with a white crescent and star.
• - Capital: Ankara.
• - Official Language: Turkish.
• - Majority Religion: Islam.
• - Parliament: Grand National Assembly of Türkiye (Türkiye Büyük Millet Meclisi).
• - Traditional National Sport: Oil wrestling (Yağlı Güreş).

 Last updated on 12 NOV 2026

Explanation

The code is formed by replacing each letter with the letter 2 positions ahead in the English alphabet:

W → Y

H → J

I → K

T → V

E → G

Similarly:

B → D

L → N

A → C

C → E

K → M

So, BLACK → DNCEM.

Last verified on 12-11-2026