| Independence from Whom | 0 | - | 4.99 | 182,672 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,708 |
| Most Recently-Settled Countries | 0 | - | 4.91 | 48,556 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,449 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 316,638 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,391,296 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,229 |
| Countries of the World in 1900 | 0 | - | 4.88 | 64,666 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 168,426 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 125,895 |
| Countries by Former Name | 0 | - | 4.98 | 92,405 |
| Historical City to Country | 0 | - | 4.82 | 71,811 |
| Countries on the Equator | 0 | - | 4.82 | 131,867 |
| Members of the Arab League | 0 | - | 4.81 | 58,875 |
| Sahara Desert Countries | 0 | - | 4.97 | 124,934 |
| Himalayan Countries | 0 | - | 4.95 | 102,228 |
| Andean Countries | 0 | - | 4.90 | 56,785 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,604 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,499 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,801 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,465 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,660 |
| Danube Countries | 0 | - | 4.97 | 56,325 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,347 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,560 |
| Countries with the Best Passports | 0 | - | 4.86 | 70,194 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,710 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,295 |
| European Landlocked Countries | 0 | - | 4.99 | 114,795 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,661 |
| Countries with the Most Species | 0 | - | 4.99 | 89,058 |
| Countries 197 to 205 | 0 | - | 4.87 | 55,724 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,404 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,778 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,698 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,067 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,418 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,617 |
| Countries in the Alps | 0 | - | 4.82 | 101,712 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,525 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,605 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,073 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,639 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,281 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,798 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 88,977 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,706 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,030 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,080 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,845 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,303 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,376 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,873 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,434 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,902 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,390 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,902 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,888 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,188 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,123 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,904 |
| Largest Countries By Category | 0 | - | 4.96 | 143,744 |
| Countries by Countries | 0 | - | 4.96 | 53,984 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,009,859 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,527 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,329 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,203 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 108,736 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 68,146 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 75,574 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,282 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,503 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,206 |
| Countries Settled by Vikings | 0 | - | 4.93 | 110,675 |
| Warsaw Pact Countries | 0 | - | 4.85 | 79,753 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.90 | 47,590 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 85,915 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,219 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,187 |
| Island Countries Quiz | 0 | - | 4.99 | 637,643 |
| Biggest Countries by Area | 0 | - | 5.00 | 923,591 |
| Northernmost Countries | 0 | - | 4.99 | 325,073 |
| Countries of South America | 0 | - | 5.00 | 782,319 |
| Countries of Oceania | 0 | - | 5.00 | 880,279 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,102,128 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,548,301 |
| Former Countries by Capital | 0 | - | 4.45 | 103,266 |
| Former Countries | 0 | - | 4.71 | 123,457 |
| Guerrillas by Country | 0 | - | 4.45 | 38,242 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 123,944 |
| Countries with Megacities | 0 | - | 4.99 | 194,418 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,160 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,711 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,489 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,575 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,690 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 161,032 |
| Countries by Official Language | 0 | - | 4.95 | 153,295 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,273 |
| Countries in their Native Language | 0 | - | 4.98 | 176,807 |
| Subdivisions by Country | 0 | - | 4.82 | 46,145 |
| Megadiverse Countries | 0 | - | 4.96 | 124,640 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,761 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,914 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,081 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 129,659 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,237 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,433 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,939 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,727 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,744 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,284 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,457 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,851 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,671 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 79,776 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 68,057 |
| Battle to Country | 0 | - | 4.92 | 34,731 |
| World Map Quiz | 0 | - | 4.90 | 47,976 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 110,174 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,648 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,148 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,000 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 106,939 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,293 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,484 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,769 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,327 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,206 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,737 |
| Widest Countries East to West | 0 | - | 4.93 | 118,399 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,661 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,769 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,062 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,695 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,553 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,426 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,234 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,821 |
| Countries with Double Letters | 0 | - | 4.96 | 66,413 |
| Countries that End in N | 0 | - | 4.94 | 130,798 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,303 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,142 |
| Countries with W | 0 | - | 4.97 | 121,107 |
| Countries with Z | 0 | - | 4.98 | 241,770 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,273 |
| Countries That End in U | 0 | - | 4.94 | 106,573 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.96 | 87,980 |
| Countries that End in O | 0 | - | 4.92 | 146,208 |
| Countries that End in R | 0 | - | 4.85 | 95,991 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,764 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,315 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,735 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,472 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,401 |
| Countries That End in Y | 0 | - | 4.90 | 160,728 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,477 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,678 |
| Countries that End in I | 0 | - | 4.92 | 114,098 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,266 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,741 |
| Countries That End in NIA | 0 | - | 4.93 | 100,242 |
| Countries That End in BIA | 0 | - | 4.91 | 125,222 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,269 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 108,939 |
| Countries That End in RIA | 0 | - | 4.89 | 100,396 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,648 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,397 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,499 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 109,292 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,218 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,433 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,794 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,299 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,640 |
| Countries that End in L | 0 | - | 4.95 | 133,246 |
| "Land" Countries | 0 | - | 4.98 | 287,695 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,628 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,055 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,635 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,411 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,028 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 205,986 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 156,821 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,589 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,487 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 191,828 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 139,862 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 65,379 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,600 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,833 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,331 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,300,725 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,279 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,030,686 |
| One Border Countries | 0 | - | 4.98 | 406,191 |
| Countries Unconquered since 1850 | 0 | - | 4.38 | 62,086 |
| Most Recent Country To ... | 0 | - | 4.34 | 51,071 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 91,762 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 35,460 |
