Explanation

• Battle of Yarmouk: Fought between the Byzantine Empire and Muslim forces under Khalid bin Waleed.
• Dates: August 15 to August 20, 636 AD.
• Location: Near the Yarmouk River.
• Caliphate: During the reign of Hazrat Umar (RA).
• Result: Decisive victory for the Muslims, marking the end of Byzantine rule in Syria.

Last verified on 12-06-2026

Explanation

• Al-Mansoor established Baghdad as the capital 
• Baghdad was founded on 30 July 762 CE.
• It is the circular City of Peace (madinat al-salam)
• It is the capital of Iraq
• The second-largest city in the Arab world 
• It is located on the Tigris river
• It has 11 District

Last updated by NA on 28 April 2026

Explanation

• The sacred book of Zoroastrianism is the Zend Avesta (Avesta).
• It contains teachings of the prophet Zoroaster (Zarathustra).
• It focuses on the concept of good vs evil (Ahura Mazda vs Angra Mainyu).
• It is one of the oldest religious texts in the world.
• It was originally written in the Avestan language.

Last verified on 27-04-2026

Explanation

6-2=4, 12-6=6, 20-12=8, 30-20=10  

Differences go 4, 6, 8, 10... next is 12  

So 30 + 12 = 42

Last updated 07 Nov 2026 by NA

Explanation

• Atoms of the same element with different numbers of neutrons are called isotopes.
• Atoms of the same element have the same number of protons and electrons but different numbers of neutrons.

Last verified on 09-11-2026

Explanation

Explanation

• Insulin is produced by the pancreas.
• The pancreas contains clusters of cells called the Islets of Langerhans.
• Beta (β) cells within these islets produce and secrete insulin.
• Insulin helps regulate blood glucose (sugar) levels by promoting glucose uptake into cells.

Last verified on 07-09-2026

Explanation

• The kidney is an important organ responsible for filtering blood and forming urine.
• Its structural and functional unit is the nephron.
• Each kidney contains millions of nephrons.
• They perform filtration, reabsorption, and secretion.

Last verified on 23-04-2026

Explanation

To be at daggers drawn: To be bitter enemies or in serious disagreement.

- Urdu: سخت دشمنی یا شدید اختلاف میں ہونا۔

Last updated 08 Nov 2026 by NA

Explanation

Sagacious means ذہین ۔ دانا

• Foolish means بے وقوف
• Fatuous means فضول

Last updated 08 Nov 2026 by NA