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

• Other name: Peace Pipeline
• Countries: Iran and Pakistan
• Purpose: Transportation of natural gas
• Proposed length: 2,775 km
• Pakistan President at inauguration ceremony: Asif Ali Zardari
• Iranian President: Mahmoud Ahmadinejad
• Inauguration: 11 March 2013

Last verified on 04-09-2026

Explanation

• Greenland is the world’s largest island.
• It is located between the Arctic and Atlantic Oceans.
• It belongs to the Kingdom of Denmark.
• Population is about 56,000 people only.
• Area: 2.131 million km²
• Maximum width: 1,050 km
• Location: North America region (Arctic area)
• Capital: Nuuk

Last verified on 06-06-2026

Explanation

• The Karakoram Range is a mountain range between China and Pakistan, extending to India and Afghanistan.
• It is famous for K2 (8611 m), the second-highest peak in the world.

Additional information:

• Major Pass: Khunjerab Pass (connects Pakistan & China)
• Famous Road: Karakoram Highway (Pakistan-China link)

Last verified on 07-03-2026

Explanation

Pakistan Super League (PSL) 2019

Edition: Fourth

Dates: 14 Feb – 17 Mar 2019

Administrator: PCB

Format: Twenty20

Venue: UAE & Pakistan

Final venue: Karachi

Winner: Quetta Gladiators (1st title)

Quetta Gladiators won by: 8 wickets

Runner-up: Peshawar Zalmi

Participants: 6

Matches: 34

Player of the series: Shane Watson (Quetta Gladiators)

Shane Watson made: 430 runs

Most runs: Shane Watson

Most wickets: Hasan Ali (Peshawar Zalmi)

Hasan Ali took: 25 wickets

Explanation

Ethiopia Capital is Addis Ababa.

Ethiopia Currency is Birr.

Ethiopia official language is Amharic.

Ethiopia located is in Continent Africa.

Ethiopia Primary Religion is Islam, Christianity.

Ethiopia Parliament called Federal Council And House Of Representative.

Last verified on 07-06-2026

Explanation

• The headquarters of the International Atomic Energy Agency (IAEA) is located in Vienna, Austria.
• Founded: 29 July 1957
• Member States: 173 countries
• Purpose: Peaceful nuclear energy use & safety
• Affiliation: United Nations (UN system)

Last verified on 10-06-2026

Explanation

Brazil's Currency is Real.

Brazil Capital is Brasilia.

Brazil's official language is Portuguese.

Brazil located is in the Continent of South America.

Brazil's Primary Religion is Christianity.

Brazil Head of Govt. is President – Luiz Inacio Lula da Silva

Brazil's Parliament is called the National Congress.

Tricks for Remember

Last verified on 02-07-2026

Explanation

• The area between the Jhelum and Chenab rivers is called Chaj Doab.
• The word Doab means the land between two rivers.

Chenab River:

• Originates from the Himalayan region of Himachal Pradesh, India.
• Enters Pakistan through Jammu and Kashmir.

Jhelum River:

• Originates from Verinag Spring, Jammu and Kashmir.
• Joins the Chenab River at Trimmu, Pakistan.

1. Bari Doab – Between Beas and Ravi
2. Bist Jalandhar Doab – Between Beas and Sutlej
3. Rachna Doab – Between Ravi and Chenab
4. Chaj Doab – Between Chenab and Jhelum
5. Sind Sagar Doab – Between Indus and Jhelum

Last verified on 25-06-2026

Explanation

• The Holy Quran was first translated in the subcontinent into Persian by Shah Waliullah Dehlavi in 1738.

Last verified on 16-05-2026