What are the largest countries by area?

10. Sudan - 2,505,813 sq km or 967,500 sq mi

9. Kazakhstan - 2,724,900 sq km or 1,052,100 sq mi

8. Argentina - 2,780,400 sq km or 1,073,500 sq mi

7. India - 3,287,263 sq km or 1,269,219 sq mi

6. Australia - 7,692,024 sq km or 2,969,907 sq mi

5. Brazil - 8,514,877 sq km or 3,287,612 sq mi

4. United States - 9,629,091 sq km or 3,717,813 sq mi

3. China - 9,639,688 sq km or 3,721,904 sq mi

2. Canada - 9,984,670 sq km or 3,855,100 sq mi

1. Russia - 17,098,242 sq km or 6,601,668 sq mi

Source

What are the largest economies - by GDP?

For year 2008:

10. Brazil - $1,611,767

9. Spain - $1,611,767

8. Russia - $1,676,586

7. Italy - $2,313,893

6. United Kingdom - $2,674,085

5. France - $2,865,737

4. Germany - $3,667,513

3. China - $4,401,614

2. Japan - $4,923,761

1. United States - $14,264,600

Source

What are the most populated countries?

As of year 2008:

10. Japan - 127,288,416

9. Russia - 140,702,096

8. Nigeria - 146,255,312

7. Bangladesh - 153,546,896

6. Pakistan - 172,800,048

5. Brazil - 196,342,592

4. Indonesia - 237,512,352

3. United States - 303,824,640

2. India - 1,147,995,904

1. China - 1,330,044,544

Source

What are the richest countries in the world by GDP per capita?

For year 2008:

10. San Marino - $46,100

9. Ireland - $47,800

8. United States - $48,000

7. Singapore - $52,900

6. Brunei - $54,100

5. Norway - $57,500

4. Kuwait - $60,800

3. Luxembourg - $85,100

2. Qatar - $101,000

1. Liechtenstein - $118,800

Source

What is gross domestic product (GDP) per capita?

An approximation of the value of goods produced per person in the country, equal to the country's GDP divided by the total number of people in the country.

The gross domestic product (GDP) or gross domestic income (GDI) is one of the measures of national income and output for a given country's economy. GDP is defined as the total market value of all final goods and services produced within the country in a given period of time (usually a calendar year). It is also considered the sum of value added at every stage of production (the intermediate stages) of all final goods and services produced within a country in a given period of time, and it is given a money value.

Source

What are the largest countries by area?

10. Sudan - 2,505,813 sq km or 967,500 sq mi

9. Kazakhstan - 2,724,900 sq km or 1,052,100 sq mi

8. Argentina - 2,780,400 sq km or 1,073,500 sq mi

7. India - 3,287,263 sq km or 1,269,219 sq mi

6. Australia - 7,692,024 sq km or 2,969,907 sq mi

5. Brazil - 8,514,877 sq km or 3,287,612 sq mi

4. United States - 9,629,091 sq km or 3,717,813 sq mi

3. China - 9,639,688 sq km or 3,721,904 sq mi

2. Canada - 9,984,670 sq km or 3,855,100 sq mi

1. Russia - 17,098,242 sq km or 6,601,668 sq mi

Source