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

Explanation

• A Barometer is an instrument used to measure air (atmospheric) pressure.
• It helps in weather forecasting by measuring changes in atmospheric pressure.
• The mercury barometer is the oldest type of barometer.
• It was invented by Evangelista Torricelli in 1643.
• Barometers are widely used in meteorology and aviation.

Last verified on 09-07-2026

Explanation

• CC stands for Carbon Copy.
• It is used to send a copy of an email to additional recipients.
• All recipients can see the email addresses listed in the To and Cc fields.

Additional information:

• Bcc (Blind Carbon Copy) → Sends a hidden copy; other recipients cannot see these addresses.

Last verified on 11-07-2026

Explanation

• Pakistan Television (PTV) started its live transmission on November 26, 1964
• At the pilot station in Lahore.
• The initial broadcasts were entirely live, as video tape recording (VTR)

Additional information:

• 2nd, in Dhaka in 1965.
• 3rd, in Rawalpindi-Islamabad in 1965.
• 4th Karachi in 1966.

Last updated by NA on 16-07-2026

Explanation

Explanation

• To highlight a column, Ctrl+Space is used.

Additional information:

• Shift + Space is used for row.
• Help in MS Excel: F1
• Display active cells in Excel: Shift+Backspace
• Current date in Excel: Ctrl+;
• GO TO tab in Ms. Excel: F5 
• Column highlight: CTRL + space
• SUM formula in MS Excel: ALT + =
• New worksheet in Excel: Shift + F11
• Format numbers in comma format: Shift+1

Last updated NA on 10-09-2026

Explanation

• The common ostrich (Struthio camelus) is the biggest bird in the world.
• It is weighing up to 344 pounds (157 kilograms) and standing 9 feet tall.
• Female ostriches lay the largest eggs of any living bird.
  

• The world’s fastest bird is the peregrine falcon.
• The white bellbird is the world’s loudest bird.

Last verified on 01-07-2026

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

• Date: 20 Ramadan, 8 AH
• Gregorian date: December 629 / January 11, 630 AD
• Leader: Prophet Muhammad (ﷺ)
• Place: Makkah (Saudi Arabia)
• Occasion: Victory of Muslims over Quraysh

Additional information:

• Prophet Muhammad (ﷺ) entered Makkah on his favorite camel Al-Qaswa (القصواء).
• Usama Ibn Zaid (RA) was sitting behind him.
• On the way, Prophet Muhammad (ﷺ) recited Surah Al-Fath (48th Surah of the Quran).

Last verified on 01-07-2026