Explanation

A national census in Pakistan is legally mandated by the constitution to be held every 10 years

1. First 1951
2. Second 1961
3. Third 1972
4. Forth 1981
5. Fifth1998 
6. Sixth 2017
7. Seventh 2023

Explanation

• Carbon dioxide (CO₂) is used in fire extinguishers.
• It extinguishes fire by displacing oxygen and cooling the burning material.
• CO₂ fire extinguishers are especially effective for electrical and flammable liquid fires.
• Carbon dioxide is a colorless and non-flammable gas.
• It leaves no residue after use.

Explanation

• O⁻ (O Negative) is the universal donor blood group.
• It can be transfused to A, B, AB, and O blood groups.
• O⁻ blood lacks A, B, and Rh (D) antigens.

Additional information:

• Universal Recipient: AB⁺ (AB Positive)
• ABO Blood Groups: A, B, AB, O
• Rh Types: Positive (+) and Negative (−)
• Total Common Blood Groups: 8 (A⁺, A⁻, B⁺, B⁻, AB⁺, AB⁻, O⁺, O⁻)

Last verified on 14-07-2026

Explanation

• The Nisab (minimum limit) for gold is 7.5 tola (87.48 grams).
• The ratio/nisab of Zakat is 2.5%.
• Zakat was made obligatory in 2 A.H.
• It was fully implemented in 9 A.H.

Additional information:

• Silver Nisab: 52.5 tola = 612.36 grams
• The word “Zakat” occurs 32 times in the Holy Quran.
• Zakat means purification and growth of wealth.
• “Zakat is the treasure of Islam” is a famous saying of the Holy Prophet (PBUH).

Last verified on 11-05-2026

Explanation

Explanation

• Let r be the radius of a circle.
• Then, the area of the circle = πr^2 
• If radii are doubled, than radii become 2r.
• Now, area of circle =π(2r) 2
•  =4π.
• Therefore, the area of the circle is increased by 4 times.

Explanation

ABUNDANT means کَثیر

Scarce means قلیل

Minute means بہت چھوٹا یا چھوٹا

Explanation

• China has the world's biggest army by active military personnel.

Additional information:

Top Militaries by Active Personnel (2025 estimates): 

1. China: ~2.035 million
2. India: ~1.46 - 1.475 million
3. United States: ~1.3 - 1.4 million
4. North Korea: ~1.28 million
5. Russia: ~1.1 - 1.3 million

Explanation

• The shortest chapter in the Quran is Surah Al-Kawthar
• Meaning: "The Abundance"
• Number of Verses: 3
• Placement: Chapter 108 in the 30th Juz (Para) of the Quran
• Location of Revelation: Makkah (Makki)

Additional information

• The second shortest surah in the Quran is Surah Al-Asr
• Surah Baqarah is the longest surah of the Holy Quran. (286 Verses). 

Last updated by NS on 5-09-2026

Explanation

• Deodar is the National tree of Pakistan.
• It is also known as  Himalayan Cedar (Cedrus Deodara).
• Its name is derived from 'Sanskrit' and means "Wood of the God".
• It is amongst the tallest trees in the country.
• Its heights of around 40-50 meters.

Additional information:

• National Bird: Chukar
• National Animal: Markhor
• National Dish: Nihari
• National Fruit: Mango
• National Flower: Jasmine
• National Vegetable: Lady Finger (Okra)

Last verified on 08-03-2026