Explanation

• "Cat is out of the bag" means Secret is revealed carelessly.
• "Cat is out of the bag" means بلی تھیلے سے باہر ہے۔
• Secret is revealed carelessly means راز بے احتیاطی سے کھل جاتا ہے۔
• This idiom indicates that confidential information has been disclosed unintentionally or prematurely.

Last verified on 25-05-2026

Explanation

• Metals allow electricity to pass through them easily.
• Among all metals, silver has the highest electrical conductivity.
• Copper and gold are also very good conductors.
• Silver is widely used in high-precision electrical applications.
• Copper is commonly used in wiring due to cost-effectiveness.

Last verified on 16-05-2026

Explanation

• “A storm in a teacup” means making a big issue out of a very small matter.
• It shows unnecessary excitement or worry about something minor.
• It is used for situations where problems are exaggerated.

Last verified on 15-05-2026

Explanation

• Pakistan hosted the 2nd Islamic Summit Conference of the OIC from 22–24 February 1974 in Lahore.
  • An Extraordinary OIC Summit was also held later in 1997 in Islamabad on Pakistan’s Golden Jubilee.

Additional information:

• 1st Summit: Rabat, Morocco – September 1969
• 3rd Summit: Makkah, Saudi Arabia – 25–28 January 1981

Last verified on 07-03-2026

Explanation

• The Nile is the longest river in the world
• Length of about 6,650 km

 Additional information

Last updated by NA on 27 April 2026

Explanation

• DOS stands for Disk Operating System.
• It is an early type of computer operating system used to manage files and programs.
• It works through text-based commands (command line).
• A famous example is MS-DOS used in early PCs. 
• Dennis Ritchie is the father of MS-DOS.
• It was developed in 1982.

Last verified on 19-04-2026

Explanation

• Hazrat Yousuf (AS) was the son of Hazrat Yaqoob (AS) and mother: Raheel.
• He was one of twelve sons of Hazrat Yaqoob (AS).
• Known for his ability to interpret dreams and his story is a lesson in patience and faith.

Additional information:

• Stayed in the well for three days.
• Sold as a slave in Egypt; bought by Zulaikha.
• Real brother: Bin Yameen.
• Mentioned 27 times in the Holy Quran.
• Burial place: Palestine.

Last verified on 09-03-2026

Explanation

• Keenjhar Lake, also known as Kalri Lake.
• It is one of the largest freshwater lakes in Pakistan.
• It is located in Thatta District, Sindh, about 122 km from Karachi and 18 km from Thatta city.
• The lake was formed by merging Sonehri Lake and Keenjhar Lake.
• It was designated as a Ramsar Wetland Site on 23 July 1976.

Last verified on 02-04-2026

Explanation

• Dermatology: Study of skin.
• It involves the study of health conditions that may affect the skin, fat hair, nails, and membranes.

Additional information:

• Agrostology: Study of Grasses
• Hematology: Study of blood
• Agronomy: Study of soil management and crop production
• Odontology: Study of teeth
• Arthrology: Study of joints
• Nephrology: Study of kidneys

Last verified on 01-04-2026

Explanation

• Rainfall is measured using a Rain Gauge.
• It collects rainwater and measures it in millimeters (mm).
• Widely used in weather forecasting and meteorology.
• Helps in studying climate and agriculture patterns.

Last verified on 31-03-2026