| Independence from Whom | 0 | - | 4.99 | 212,631 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,126 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,712 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,799 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,746,640 |
| Recently Independent Countries | 0 | - | 4.98 | 159,736 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,637 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,301 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,776 |
| Countries by Former Name | 0 | - | 4.99 | 125,597 |
| Countries with Four Letters | 0 | - | 4.99 | 424,891 |
| Historical City to Country | 0 | - | 4.85 | 78,778 |
| Landlocked Countries | 0 | - | 4.99 | 424,018 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,151 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,720 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,406 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,085 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,431 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,745 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,600 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,924 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,624 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,058 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,341 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,793,273 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,561 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,096 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,300 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,120 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,216 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,427 |
| Himalayan Countries | 0 | - | 4.94 | 139,601 |
| Andean Countries | 0 | - | 4.94 | 85,091 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,286 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,510 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,847 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,146 |
| Danube Countries | 0 | - | 4.97 | 72,227 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,337 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,652 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,752 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,252 |
| European Landlocked Countries | 0 | - | 4.99 | 147,404 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,010 |
| Countries with the Most Species | 0 | - | 4.99 | 103,437 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,132 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,690 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,801 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,711 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,445 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,859 |
| Countries in the Alps | 0 | - | 4.87 | 118,508 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,132 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,490 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,824 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,825 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,758 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,106 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,946 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,689 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,313 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,028 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,770 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,637 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,401 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,643 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,735 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,406 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,483 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,340 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,386 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,994 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,713 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,394 |
| Largest Countries By Category | 0 | - | 4.97 | 158,568 |
| Countries by Countries | 0 | - | 4.96 | 63,455 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,031 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,353 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,629 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,924 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,410 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,162 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,661 |
| Island Countries | 0 | - | 4.99 | 711,851 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,696 |
| Northernmost Countries | 0 | - | 4.99 | 363,184 |
| Countries of South America | 0 | - | 5.00 | 930,181 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,558 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,934 |
| "Land" Countries | 0 | - | 4.98 | 337,924 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,096 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,389,231 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,326 |
| Battle to Country | 0 | - | 4.91 | 53,749 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,223 |
| Countries by Independence Day | 0 | - | 4.62 | 52,833 |
| Former Countries by Capital | 0 | - | 4.45 | 127,725 |
| Former Countries | 0 | - | 4.77 | 134,079 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,488 |
| Countries with Megacities | 0 | - | 4.99 | 265,958 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,286 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,766 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,535 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,883 |
| Countries by Official Language | 0 | - | 4.95 | 195,679 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,173 |
| Countries in their Native Language | 0 | - | 4.99 | 199,451 |
| Subdivisions by Country | 0 | - | 4.87 | 50,543 |
| Megadiverse Countries | 0 | - | 4.96 | 135,162 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,469 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,464 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,355 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,167 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,387 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,579 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,476 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,753 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,210 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,117 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,277 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,342 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,068 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,484 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,611 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,882 |
| World Map Quiz | 0 | - | 4.81 | 65,390 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,377 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,542 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,829 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,726 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,374 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,045 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,223 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,351 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,555 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,595 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,491 |
| Widest Countries East to West | 0 | - | 4.92 | 130,240 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,544 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,047 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,448 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,944 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,819 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,270 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,453 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,855 |
| Countries with Double Letters | 0 | - | 4.96 | 96,717 |
| Countries that End in N | 0 | - | 4.95 | 171,597 |
| Countries with Five Letters | 0 | - | 4.96 | 283,258 |
| Countries with Six Letters | 0 | - | 4.94 | 214,058 |
| Countries with W | 0 | - | 4.96 | 160,666 |
| Countries with Z | 0 | - | 4.98 | 292,015 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,036 |
| Countries That End in U | 0 | - | 4.95 | 121,040 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,824 |
| Countries that End in O | 0 | - | 4.92 | 159,685 |
| Countries that End in R | 0 | - | 4.87 | 119,081 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,837 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,498 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,953 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,669 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,593 |
| Countries That End in Y | 0 | - | 4.91 | 186,008 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,219 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,093 |
| Countries that End in I | 0 | - | 4.94 | 135,224 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,405 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,949 |
| Countries That End in NIA | 0 | - | 4.92 | 109,937 |
| Countries That End in BIA | 0 | - | 4.93 | 149,417 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,351 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,644 |
| Countries That End in RIA | 0 | - | 4.93 | 126,952 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,235 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,146 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,975 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,413 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,965 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,701 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,208 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,495 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,736 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,556 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,533 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 54,224 |
| Countries that End in L | 0 | - | 4.94 | 157,007 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,805 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,309 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,162 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,098 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,144 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,143 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,938 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,312 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,079 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,752 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,072 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,176 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,763 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,130 |
