| Independence from Whom | 0 | - | 4.99 | 211,527 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,848 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,431 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,085 |
| Countries by Founding Story | 0 | - | 4.95 | 77,135 |
| Landlocked Countries | 0 | - | 4.99 | 419,691 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,393,583 |
| Recently Independent Countries | 0 | - | 4.98 | 159,132 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,751 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,000 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,623 |
| Countries by Former Name | 0 | - | 4.99 | 125,017 |
| Historical City to Country | 0 | - | 4.84 | 78,481 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,310 |
| Himalayan Countries | 0 | - | 4.95 | 137,748 |
| Andean Countries | 0 | - | 4.95 | 84,090 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,326 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,862 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,960 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,439 |
| Danube Countries | 0 | - | 4.97 | 71,737 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,663 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,137 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,789 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,869 |
| European Landlocked Countries | 0 | - | 4.99 | 146,862 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,236 |
| Countries with the Most Species | 0 | - | 4.99 | 103,001 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,392 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,457 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,618 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,369 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,042 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,438 |
| Countries in the Alps | 0 | - | 4.87 | 117,814 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,215 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,532 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,468 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,274 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,201 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,779 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,370 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,261 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,022 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,625 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,524 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,370 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,992 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,259 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,276 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,346 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,116 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,622 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,655 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,724 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,437 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,041 |
| Largest Countries By Category | 0 | - | 4.97 | 157,783 |
| Countries by Countries | 0 | - | 4.96 | 62,923 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,324 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,180 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,486 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,800 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,719 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,409 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,761,871 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,500 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,184 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,141 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,642 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,215 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,494 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,166 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,344 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,484 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,997 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,627 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,380 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,651 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,815 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,707 |
| Island Countries | 0 | - | 4.99 | 710,078 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,911 |
| Northernmost Countries | 0 | - | 4.99 | 360,849 |
| Countries of South America | 0 | - | 5.00 | 923,992 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,625 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,869,170 |
| "Land" Countries | 0 | - | 4.98 | 335,985 |
| Former Countries by Capital | 0 | - | 4.45 | 127,418 |
| Former Countries | 0 | - | 4.75 | 133,729 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,516 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,246 |
| Countries with Megacities | 0 | - | 4.99 | 262,365 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,078 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,110 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,384 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,163 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,662 |
| Countries by Official Language | 0 | - | 4.95 | 194,793 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,740 |
| Countries in their Native Language | 0 | - | 4.99 | 198,333 |
| Subdivisions by Country | 0 | - | 4.86 | 50,321 |
| Megadiverse Countries | 0 | - | 4.96 | 134,821 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,665 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,219 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,792 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,036 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,806 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,890 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,530 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,016 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,168 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,760 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,037 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,827 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,199 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,370 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,410 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,763 |
| Battle to Country | 0 | - | 4.91 | 53,242 |
| World Map Quiz | 0 | - | 4.81 | 64,727 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,955 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,113 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,707 |
| Countries by Road Signs | 0 | - | 4.98 | 53,730 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,653 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,018 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,745 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,570 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,614 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,763 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,901 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,314 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,352 |
| Widest Countries East to West | 0 | - | 4.92 | 129,440 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,405 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,055 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,028 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,579 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,316 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,629 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,274 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,741 |
| Countries with Double Letters | 0 | - | 4.97 | 95,237 |
| Countries that End in N | 0 | - | 4.95 | 170,238 |
| Countries with Five Letters | 0 | - | 4.96 | 280,961 |
| Countries with Six Letters | 0 | - | 4.94 | 212,675 |
| Countries with W | 0 | - | 4.97 | 159,626 |
| Countries with Z | 0 | - | 4.98 | 290,360 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,869 |
| Countries That End in U | 0 | - | 4.95 | 120,465 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,887 |
| Countries that End in O | 0 | - | 4.92 | 159,248 |
| Countries that End in R | 0 | - | 4.87 | 118,764 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,543 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,476 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,233 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,153 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,756 |
| Countries That End in Y | 0 | - | 4.91 | 185,681 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,405 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,517 |
| Countries that End in I | 0 | - | 4.94 | 134,909 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,491 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,618 |
| Countries That End in NIA | 0 | - | 4.92 | 109,567 |
| Countries That End in BIA | 0 | - | 4.93 | 148,918 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,814 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,137 |
| Countries That End in RIA | 0 | - | 4.93 | 126,587 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,725 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,919 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,333 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,711 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,239 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,381 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,737 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,313 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,230 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,239 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,914 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,644 |
| Countries that End in L | 0 | - | 4.94 | 156,601 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,402 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,168 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,881 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,777 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,822 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,927 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,295 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,719 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,226 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,721 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,642 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,987 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,617 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,715 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,448 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,015 |
| One Border Countries | 0 | - | 4.98 | 468,122 |
