Explanation

• William Harvey discovered the circulation of blood.
• He was the first physician to completely describe systemic blood circulation.
• Famous book: De Motu Cordis (On the Motion of the Heart and Blood) (1628)
• He is known as the Father of Circulation of Blood.

Additional information:

• Birth: 1578
• Death: 1657

Last verified on 23-06-2026

Explanation

• Current DG: Dr. Usman Anwar (effective Feb 3, 2026).
• He previously served as the Inspector General (IG) of Punjab Police.
• He replaced Raja Riffat Mukhtar in this role.

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Last verified on 23-06-2026

Explanation

• The Indus Waters Treaty was signed on September 19, 1960, in Karachi.
• It was signed between Pakistan (President Ayub Khan) and India (Prime Minister Jawaharlal Nehru).
• It was brokered by the World Bank.

It became effective on April 1, 1960.

• Western Rivers (given to Pakistan): Indus, Jhelum, Chenab
• Eastern Rivers (given to India): Ravi, Beas, Sutlej

Last verified on 30-03-2026

Explanation

• Date Signed: 10 January 1966
• Place: Tashkent, Soviet Union (now Uzbekistan)
•  It was a peace treaty between India and Pakistan following the 1965 war

Signatories:

• Ayub Khan – President of Pakistan
• Lal Bahadur Shastri – Prime Minister of India
• Alexei Kosygin – Premier of USSR (mediator)

Last verified on 16-01-2026

Explanation

• Name: Meesaq-e-Madina / Constitution of Medina
• Year: 622 CE (1 AH)
• Place: Medina, Arabia
• Issued by: Prophet Muhammad (PBUH)
• Total articles: 47 (commonly cited)

Last verified on 23-06-2026

Explanation

• Sir Muhammad Zafrullah Khan was the first Foreign Minister of Pakistan.
• He served from 27 December 1947 to 24 October 1954.
• Preceded by: Liaquat Ali Khan (acting role before formal ministry setup)
• Succeeded by: Muhammad Ali Bogra
• Party: All India Muslim League

Last verified on 23-06-2026

Explanation

• Bluetooth is a Personal Area Network (PAN) technology used for short-range communication.
• It connects devices within a range of about 10 meters.
• It is commonly used in headphones, mobile phones, and laptops.
• It works without cables using wireless signals.

Last verified on 24-06-2026

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

• The border between Pakistan and Afghanistan is called the Durand Line.
• It was drawn in 1893.
• It was established as the official border between British India and Afghanistan.
• British representative: Sir Mortimer Durand
• Afghan ruler: Amir Abdur Rahman Khan
• Length: Around 2,640 km (2,611 km)

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Last verified on 09-06-2026

Explanation

Ladder + wall + ground make a right triangle.  

Angle = 45° at ground, distance from wall = 5m = adjacent side  

tan45° = opposite / adjacent = height / 5  

tan45° = 1, so height = 5 × 1 = 5m

Last verified on 24-06-2026