| Independence from Whom | 0 | - | 4.99 | 211,374 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,751 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,398 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,009 |
| Countries by Founding Story | 0 | - | 4.95 | 77,092 |
| Landlocked Countries | 0 | - | 4.99 | 419,188 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,350,574 |
| Recently Independent Countries | 0 | - | 4.98 | 159,049 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,633 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,820 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,459 |
| Countries by Former Name | 0 | - | 4.99 | 124,941 |
| Historical City to Country | 0 | - | 4.84 | 78,447 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,092 |
| Himalayan Countries | 0 | - | 4.95 | 137,524 |
| Andean Countries | 0 | - | 4.95 | 83,989 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,258 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,732 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,881 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,380 |
| Danube Countries | 0 | - | 4.97 | 71,692 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,601 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,085 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,692 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,769 |
| European Landlocked Countries | 0 | - | 4.99 | 146,800 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,166 |
| Countries with the Most Species | 0 | - | 4.99 | 102,939 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,307 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,436 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,597 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,320 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,004 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,386 |
| Countries in the Alps | 0 | - | 4.87 | 117,724 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,159 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,411 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,434 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,024 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,131 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,730 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,307 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,210 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,980 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,574 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,499 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,349 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,948 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,206 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,229 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,236 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,080 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,583 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,558 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,482 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,276 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,013 |
| Largest Countries By Category | 0 | - | 4.97 | 157,677 |
| Countries by Countries | 0 | - | 4.96 | 62,859 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,245 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,168 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,478 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,594 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,671 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,343 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,758,154 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,428 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,134 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,103 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,565 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,180 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,456 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,105 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,302 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,458 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,856 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,521 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,320 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,185 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,667 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,226 |
| Island Countries | 0 | - | 4.99 | 709,858 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,303 |
| Northernmost Countries | 0 | - | 4.99 | 360,576 |
| Countries of South America | 0 | - | 5.00 | 923,202 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,538 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,867,052 |
| "Land" Countries | 0 | - | 4.98 | 335,844 |
| Former Countries by Capital | 0 | - | 4.45 | 127,380 |
| Former Countries | 0 | - | 4.75 | 133,684 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,376,225 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,096 |
| Countries with Megacities | 0 | - | 4.99 | 261,057 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,950 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,029 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,230 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,047 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,612 |
| Countries by Official Language | 0 | - | 4.95 | 194,674 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,593 |
| Countries in their Native Language | 0 | - | 4.99 | 198,223 |
| Subdivisions by Country | 0 | - | 4.86 | 50,297 |
| Megadiverse Countries | 0 | - | 4.96 | 134,785 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,576 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,195 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,763 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,024 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,730 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,857 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,499 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,998 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,035 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,728 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,006 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,793 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,166 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,334 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,260 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,691 |
| Battle to Country | 0 | - | 4.91 | 53,188 |
| World Map Quiz | 0 | - | 4.81 | 64,610 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,705 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,054 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,644 |
| Countries by Road Signs | 0 | - | 4.98 | 53,672 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,551 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,954 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,670 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,390 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,543 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,694 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,848 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,278 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,306 |
| Widest Countries East to West | 0 | - | 4.92 | 129,394 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,387 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,980 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,998 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,528 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,243 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,570 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,245 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,730 |
| Countries with Double Letters | 0 | - | 4.97 | 95,123 |
| Countries that End in N | 0 | - | 4.95 | 170,060 |
| Countries with Five Letters | 0 | - | 4.96 | 280,452 |
| Countries with Six Letters | 0 | - | 4.94 | 212,529 |
| Countries with W | 0 | - | 4.97 | 159,541 |
| Countries with Z | 0 | - | 4.98 | 289,856 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,782 |
| Countries That End in U | 0 | - | 4.95 | 120,424 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,787 |
| Countries that End in O | 0 | - | 4.92 | 159,211 |
| Countries that End in R | 0 | - | 4.87 | 118,744 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,521 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,372 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,137 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,100 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,688 |
| Countries That End in Y | 0 | - | 4.91 | 185,654 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,260 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,456 |
| Countries that End in I | 0 | - | 4.94 | 134,881 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,113 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,586 |
| Countries That End in NIA | 0 | - | 4.92 | 109,525 |
| Countries That End in BIA | 0 | - | 4.93 | 148,865 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,747 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,081 |
| Countries That End in RIA | 0 | - | 4.93 | 126,553 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,658 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,759 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,262 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,629 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,156 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,341 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,700 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,261 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,152 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,211 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,853 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,562 |
| Countries that End in L | 0 | - | 4.94 | 156,549 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,111 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,158 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,850 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,735 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,793 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,822 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,201 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,651 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,151 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,642 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,599 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,964 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,606 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,685 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,611 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,813 |
| One Border Countries | 0 | - | 4.98 | 467,804 |
