Explanation

• DOCX is the newer version of DOC, the original official Microsoft Word file format. 
• Microsoft Word 97 - 2003 Document extension (.doc).
• Microsoft Word 2007 to till date Document extension (.docx).

Additional information:

• .xls extension of Excel.
• .ppt extension of PowerPoint.
• .txt extension of Text files.
• .pdf extension of Portable Document Format.

Last verified on 15-02-2026

Explanation

• SIM stands for Subscriber Identity Module.
• A SIM card securely stores the subscriber's identity and enables access to a mobile network.

Additional information:

• First SIM card developed: 1991
• Invented in: Munich, Germany
• Manufacturer: Giesecke+Devrient (G+D)
• PIN: Personal Identification Number
• PUK: Personal Unblocking Key

Last verified on 22-07-2026

Explanation

• In Islamic purification, Ghusl (ritual bath) has 3 Fard (obligatory acts).
• These are necessary for the bath to be valid according to Fiqh rules.
• Ghusl is required after major impurity (Janabat, Haiz, Nifas).
• Without completing these 3, Ghusl is not valid.

Last verified on 25-04-2026

Explanation

• Total mentions: 32 times
• Makki Surahs: 22 times
• Madani Surahs: 10 times
• Status: Third pillar of Islam
• Purpose: Purification of wealth & helping poor

Last verified on 12-06-2026

Explanation

• .pptx → Default PowerPoint Presentation (2007 and later)
• ppt → PowerPoint Presentation (97–2003)

Additional information:

• .ppsx → PowerPoint Show (opens directly as a slideshow)
• .potx → PowerPoint Template
• .pptm → Macro-enabled Presentation

Last verified on 11-07-2026

Explanation

• First Polio Vaccine Introduced: 1955
• Developer: Dr. Jonas Salk
• Type: Inactivated Polio Vaccine (IPV)
• Oral Polio Vaccine (OPV): 1961
• Developer of OPV: Dr. Albert Sabin

Last verified on 20-07-2026

Explanation

• The report was so flawed that it was rejected.
• The correct pattern is so + adjective + that.
• Flawed is an adjective, so so is used.
• Such is used before a noun (e.g., such a flawed report).

Last verified on 07-07-2026

Explanation

• The United States of America has received the highest number of Nobel Prizes since the Nobel Prize was established.

Top 5 Countries by Nobel Laureates:

• United States – 403
• United Kingdom – 137
• Germany – 111
• France – 71
• Sweden – 32

Last verified on 08-07-2026

Explanation

• Afghanistan is located to the north-west of Pakistan.
• Pakistan shares its longest land border (2,640 km) with Afghanistan.
• The border between Pakistan and Afghanistan is called the Durand Line.

Additional information:

• East: India
• North-east: China
• South-west: Iran
• South: Arabian Sea

Last verified on 06-07-2026

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