Explanation

Siha-e-Sitta (Sihah al-Sittah) are the six authentic books of Hadith in Sunni Islam.

1. Sahih al-Bukhari – Compiled by Imam Muhammad al-Bukhari – 7,275 Ahadith.
2. Sahih Muslim – Compiled by Imam Muslim ibn al-Hajjaj – 9,200 Ahadith.
3. Sunan al-Nasa'i – Compiled by Imam al-Nasa'i – 5,270 Ahadith.
4. Sunan Abi Dawud – Compiled by Imam Abu Dawood – 4,800 Ahadith.
5. Jami' al-Tirmidhi – Compiled by Imam al-Tirmidhi – 3,956 Ahadith.
6. Sunan Ibn Majah – Compiled by Ibn Majah – 4,000 Ahadith.

Last verified on 07-07-2026

Explanation

• DOCX is the newer version of DOC, the original official Microsoft Word file format. 
• Microsoft Word 97 - 2003 Document extension (.doc).
• Microsoft Word 2007 to till date Document extension (.docx).

Additional information:

• .xls extension of Excel.
• .ppt extension of PowerPoint.
• .txt extension of Text files.
• .pdf extension of Portable Document Format.

Last verified on 15-02-2026

Explanation

• .pptx → Default PowerPoint Presentation (2007 and later)
• ppt → PowerPoint Presentation (97–2003)

Additional information:

• .ppsx → PowerPoint Show (opens directly as a slideshow)
• .potx → PowerPoint Template
• .pptm → Macro-enabled Presentation

Last verified on 11-07-2026

Explanation

• The shortcut key to insert a new slide in a PowerPoint presentation is Ctrl + M.

Additional information:

• Ctrl + N shortcut key used to create a new presentation document.
• Ctrl + S shortcut key used to save a presentation.

Last verified on 29-05-2026

Explanation

• NATO is a military alliance.
• NATO stands for North Atlantic Treaty Organization.
• Founded: 4 April 1949 (Washington, USA).
• Headquarters: Brussels, Belgium
• Official Languages: English & French.
• Founding Members: 12

Total Members: 32

• European: 30
• North American: 2

Latest Member: Sweden (joined 7 March 2024)

• Muslim Member Country: Türkiye
• Pakistan: Not a NATO member

List of NATO member countries:

1. Albania
2. Belgium
3. Bulgaria
4. Canada
5. Croatia
6. Czechia
7. Denmark
8. Estonia
9. France
10. Germany
11. Greece
12. Hungary
13. Iceland
14. Italy
15. Latvia
16. Lithuania
17. Luxembourg
18. Montenegro
19. Netherlands
20. North Macedonia
21. Norway
22. Poland
23. Portugal
24. Romania
25. Slovakia
26. Slovenia
27. Spain
28. Turkiye
29. United Kingdom
30. United States
31. Finland
32. Sweden

Last verified on 17-03-2026

Explanation

• China is the world's largest potato producer.
• Over 94-95 million metric tonnes annually.
• 25.5% of world production

List of Top Countries

1. Rank      
2. China
3. India
4. Ukraine
5. Russia
6. United States
7. Germany
8. Bangladesh
9. France
10. Pakistan
11. Netherlands

Last updated question by NS on 11 May 2026

Explanation

• Excel 2007–2026 (Default): .xlsx

Additional information:

• Excel 97–2003 (Default): .xls
• Excel Macro-Enabled Workbook: .xlsm
• Excel Binary Workbook: .xlsb
• Excel Template: .xltx

Last verified on 12-07-2026

Explanation

• A Cell is the intersection of a row and a column in a spreadsheet such as MS Excel.
• Each cell has a unique cell address, such as A1, B5, or C10.
• Rows are identified by numbers: 1, 2, 3, ...
• Columns are identified by letters: A, B, C, ...
• A cell can contain text, numbers, formulas, or functions.

Last verified on 09-08-2026

Explanation

Speed = Distance / Time = 600 m / 30 s = 20 m/s

Convert to km/h: 20 × 3.6 = 72 km/h

Last verified on 23-08-2026

Explanation

25 = 125% of x

To convert the percentage to a decimal, divide by 100:

25 = 1.25x

Now, divide both sides by 1.25 to solve for x:

x = 25 / 1.25

x = 20

Last verified on 23-08-2026