Explanation

• Hazrat Ali (RA) is widely known as "Bāb-ul-Ilm" (The Gate of Knowledge).
• This title is associated with the famous narration: "I am the city of knowledge, and Ali is its gate."
• He was renowned for his deep knowledge, wisdom, and justice.

Additional information:

• Fourth Caliph: 656–661 AD (35–40 AH)
• Father: Abu Talib
• Relation to the Prophet (ﷺ): Cousin and son-in-law

Last verified on 19-07-2026

Explanation

• The latest country to abolish its monarchy is Barbados.
• Date: November 30, 2021
• Legislation: Constitution (Amendment) (No. 2) Act, 2021
• New Office: President of Barbados
• Last Monarch: Queen Elizabeth II

• Nepal: Abolished monarchy in 2008.
• Mauritius: Abolished monarchy in 1992.
• Fiji: Abolished monarchy in 1987.

Last updated 18-07-2026 by NA

Explanation

• Bones do not secrete hormones,
• Hormones are produced by glands in the endocrine system.
• The parathyroid gland secretes parathyroid hormone.
• It regulates calcium levels in the blood and bones.

Addition information 

• Functions performed by bones in the human body:
• Support: Provides a rigid framework for soft tissues.
• Protection: Shields vital organs like the brain, heart, and lungs.

Last updated 18-07-2026 by NA

Explanation

• Mount Kinabalu is located in Sabah, Malaysia,
• On the island of Borneo.
• Elevation: 4,095 m (13,435 ft)
• It is the third-highest peak of an island on Earth
• The 28th-highest peak in Southeast Asia

Last updated 18-07-2026 by NA

Explanation

• The MAX function returns the largest value in a set of numbers in Excel.
• It compares all selected values and displays the highest one.
• It is commonly used for finding the maximum score, salary, or price.

Additional information:

• MIN() → Returns the smallest value
• AVERAGE() → Returns the average value
• COUNT() → Counts cells containing numbers
• SUM() → Adds all numbers

Last verified on 18-07-2026

Explanation

• The SI unit of electric current is Ampere (A).
• Electric current measures the flow of electric charge.
• Defined using the elementary charge (e = 1.602176634 × 10⁻¹⁹ C).
• Named after: André-Marie Ampère (scientist).
• 1 Ampere = 1 Coulomb per second (1 A = 1 C/s).

Last verified on 08-06-2026

Explanation

The pattern alternates between +2 and ×2:

• 4 → 6 (+2)
• 6 → 12 (×2)
• 12 → 14 (+2)
• 14 → 28 (×2)
• 28 → 30 (+2)
• 30 → 60 (×2)

Last updated 17 july 2026 by NA

Explanation

• Ambiguous means مبہم
• Unclear means مبہم
• Uncertain means مبہم
• Vague means مبہم
• Antonym: Unambiguous means غیر مبہم

Last verified on 17-07-2026

Explanation

• 24-karat (24K) gold is considered the "best"
• Purity: 99.9% pure gold.
• Color: Rich, deep, bright yellow.

Additional information

• 22K Gold: 91.7% pure gold. It is mixed with harder metals like silver or copper.
• 18K Gold: 75% pure gold. It is highly durable and excellent for diamond settings 
• Carat is the unit of measurement for the physical weight of diamonds/gold.

Last updated by NA on 16-07-2026

Explanation

• Neon is the primary gas used in decorative and advertising lights
• The color of the light depends on the gas in the tube.

Additional information

• Argon: Produces a blue or (mixed with mercury) green/purple light.
• Helium: Glows yellow or pink.
• Krypton: Emits a whitish-yellow light.
• Xenon: Creates a violet/lavender light.

Last updated by NA on 16-07-2026