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

• Ottawa is the capital city of Canada.
• Chosen as the capital in 1857 by Queen Victoria.

Additional information:

The Currency of Canada is the Canadian Dollar.

Official languages: English and French.

Located in the continent of North America.

Primary Religion is Christianity (but a secular country).

Parliament of Canada is called Parliament.

Tricks for Remember

DOLLAR

 Li-Ne-US-Ca-Fi-T-E-A

Mind trick: Li ne(a name) who lives in US likes Coffee(Ca- Fi) and Tea(T-E-A)

**Li-Ne**

Li-Liberia

Ne-New Zealand

**US**

United States

**Ca-Fi**

Ca-Canadian

Fi- Fizzi

**T-E-A**

T-Taiwan

E-Ethiopia

A-Australia

 Last verified on 10-06-2026

Explanation

• Japan is known as the "Land of the Rising Sun."
• In Japanese, Nihon (日本) or Nippon means "Origin of the Sun" or "Sun's Origin."
• The name reflects Japan's location east of China, where the sun appears to rise.
• Japan is an island country in East Asia.
• It is located in the northwestern Pacific Ocean.

Additional information:

• Capital: Tokyo
• Currency: Japanese Yen (JPY)
• Official Language: Japanese
• Continent: Asia
• Parliament: The National Diet (Diet)
• National Animal: Japanese Macaque (Snow Monkey)

Last verified on 09-07-2026

Explanation

• Fragile means کمزور
• Weak means نازک
• Brittle means نازک

Last verified on 10-06-2026

Explanation

• "Each of the participants" is singular, so it takes a singular verb.
• "Was provided" correctly matches the singular subject in past tense.

Last verified on 12-05-2026

Explanation

• Osman I was the founder of the Ottoman Empire.
• He established the empire in 1299 AD.
• He was a Turkish tribal leader known as Osman Gazi.
• His reign lasted from 1299 to 1324 AD.

Last verified on 26-04-2026

Explanation

• Venus is the brightest planet.
• It has an atmosphere but no moons.
• It's identical in size, chemistry and gravity.
• It has volcanoes, mountains and sand.
• It's also called Sister Planet of the Earth.

Last verified on 25-04-2026

Explanation

If 6 men take 9 days, total work = 6 × 9 = 54 man-days.

To finish in 3 days, number of men needed = 54 ÷ 3 = 18 men.

Explanation

• The Great Barrier Reef is located in Australia
• It is the world's largest coral reef system.
• Region: Off the coast of Queensland.
• Designated in 1981
• It covers an area of 348,700 km².

Last updated question  18-02-2026

Explanation

Given:

- 6 men make 10 sofas in 2 days.

First, find the total man-days needed for 10 sofas:

6 men × 2 days = 12 man-days for 10 sofas.

So, man-days per sofa = 12 ÷ 10 = 1.2 man-days per sofa.

Now, for 8 sofas:

Total man-days needed = 8 sofas × 1.2 = 9.6 man-days.

If 8 men are working, number of days needed = 9.6 ÷ 8 = 1.2 days