| Countries by Former Name | 0 | - | 4.99 | 125,069 |
| Independence from Whom | 0 | - | 4.99 | 211,602 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,898 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,451 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,134 |
| Countries by Founding Story | 0 | - | 4.95 | 77,162 |
| Cities by Former Name | 0 | - | 4.83 | 91,527 |
| Recently Independent Countries | 0 | - | 4.98 | 159,170 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,809 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,102 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,711 |
| Historical City to Country | 0 | - | 4.84 | 78,501 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,417,809 |
| Landlocked Countries | 0 | - | 4.99 | 419,947 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,763,964 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,550 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,218 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,162 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,696 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,227 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,520 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,192 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,449 |
| Himalayan Countries | 0 | - | 4.95 | 137,880 |
| Andean Countries | 0 | - | 4.95 | 84,148 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,371 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,937 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,016 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,473 |
| Danube Countries | 0 | - | 4.97 | 71,763 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,703 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,160 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,851 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,930 |
| European Landlocked Countries | 0 | - | 4.99 | 146,897 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,285 |
| Countries with the Most Species | 0 | - | 4.99 | 103,036 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,437 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,384 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,467 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,636 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,398 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,075 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,465 |
| Countries in the Alps | 0 | - | 4.87 | 117,877 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 96,565 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,594 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,497 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,378 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,240 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,797 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,402 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,279 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,040 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,643 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,542 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,385 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,011 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,300 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,307 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,430 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,136 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,639 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,708 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,890 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,518 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,062 |
| Largest Countries By Category | 0 | - | 4.97 | 157,832 |
| Countries by Countries | 0 | - | 4.97 | 62,951 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,379 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,491 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,186 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,065 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,495 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,668 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,407 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,897 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,750 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,448 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,877 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,889 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,929 |
| Island Countries | 0 | - | 4.99 | 710,184 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,047,235 |
| Northernmost Countries | 0 | - | 4.99 | 360,993 |
| Countries of South America | 0 | - | 5.00 | 924,359 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,196 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,870,211 |
| "Land" Countries | 0 | - | 4.98 | 336,063 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,691 |
| Countries by Independence Day | 0 | - | 4.61 | 52,727 |
| Former Countries by Capital | 0 | - | 4.45 | 127,444 |
| Former Countries | 0 | - | 4.75 | 133,751 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,378,246 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,802 |
| Battle to Country | 0 | - | 4.91 | 53,279 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,726 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,327 |
| Countries with Megacities | 0 | - | 4.99 | 262,811 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,172 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,156 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,471 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,203 |
| Countries by Official Language | 0 | - | 4.95 | 194,845 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,812 |
| Countries in their Native Language | 0 | - | 4.99 | 198,380 |
| Subdivisions by Country | 0 | - | 4.86 | 50,338 |
| Megadiverse Countries | 0 | - | 4.96 | 134,842 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,716 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,233 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,807 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,045 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,849 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,906 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,539 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,028 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,251 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,773 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,056 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,841 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,224 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,393 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,507 |
| World Map Quiz | 0 | - | 4.81 | 64,788 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,141 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,145 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,891 |
| Countries by Road Signs | 0 | - | 4.98 | 53,759 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,693 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,048 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,771 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,642 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,649 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,786 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,919 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,333 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,385 |
| Widest Countries East to West | 0 | - | 4.92 | 129,457 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,407 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,107 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,039 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,598 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,344 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,658 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,291 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,750 |
| Countries with Double Letters | 0 | - | 4.97 | 95,302 |
| Countries that End in N | 0 | - | 4.95 | 170,324 |
| Countries with Five Letters | 0 | - | 4.96 | 281,124 |
| Countries with Six Letters | 0 | - | 4.94 | 212,740 |
| Countries with W | 0 | - | 4.97 | 159,661 |
| Countries with Z | 0 | - | 4.98 | 290,537 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,922 |
| Countries That End in U | 0 | - | 4.95 | 120,490 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,930 |
| Countries that End in O | 0 | - | 4.92 | 159,268 |
| Countries that End in R | 0 | - | 4.87 | 118,786 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,558 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,532 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,283 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,191 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,791 |
| Countries That End in Y | 0 | - | 4.91 | 185,698 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,462 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,559 |
| Countries that End in I | 0 | - | 4.94 | 134,926 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,665 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,640 |
| Countries That End in NIA | 0 | - | 4.92 | 109,589 |
| Countries That End in BIA | 0 | - | 4.93 | 148,942 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,848 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,171 |
| Countries That End in RIA | 0 | - | 4.93 | 126,606 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,744 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,987 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,367 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,744 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,288 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,394 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,760 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,343 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,250 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,261 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,942 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,669 |
| Countries that End in L | 0 | - | 4.94 | 156,623 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,566 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,177 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,898 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,796 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,845 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,983 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,334 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,757 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,269 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,766 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,661 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,000 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,628 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,739 |
