| Independence from Whom | 0 | - | 4.99 | 211,541 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,857 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,435 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,095 |
| Countries by Founding Story | 0 | - | 4.95 | 77,139 |
| Landlocked Countries | 0 | - | 4.99 | 419,734 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,398,552 |
| Recently Independent Countries | 0 | - | 4.98 | 159,139 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,765 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,015 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,647 |
| Countries by Former Name | 0 | - | 4.99 | 125,023 |
| Historical City to Country | 0 | - | 4.84 | 78,486 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,332 |
| Himalayan Countries | 0 | - | 4.95 | 137,767 |
| Andean Countries | 0 | - | 4.95 | 84,102 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,340 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,878 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,970 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,449 |
| Danube Countries | 0 | - | 4.97 | 71,743 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,672 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,142 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,808 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,885 |
| European Landlocked Countries | 0 | - | 4.99 | 146,865 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,246 |
| Countries with the Most Species | 0 | - | 4.99 | 103,010 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,404 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,458 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,622 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,374 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,046 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,442 |
| Countries in the Alps | 0 | - | 4.87 | 117,824 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,221 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,550 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,473 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,328 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,211 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,781 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,376 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,262 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,024 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,627 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,524 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,374 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,995 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,262 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,284 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,366 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,119 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,627 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,662 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,764 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,450 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,043 |
| Largest Countries By Category | 0 | - | 4.97 | 157,792 |
| Countries by Countries | 0 | - | 4.96 | 62,929 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,332 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,182 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,488 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,821 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,724 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,416 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,762,244 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,514 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,193 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,146 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,657 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,220 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,502 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,173 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,353 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,486 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,011 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,632 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,384 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,708 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,834 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,789 |
| Island Countries | 0 | - | 4.99 | 710,100 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,983 |
| Northernmost Countries | 0 | - | 4.99 | 360,876 |
| Countries of South America | 0 | - | 5.00 | 924,075 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,720 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,869,332 |
| "Land" Countries | 0 | - | 4.98 | 335,997 |
| Former Countries by Capital | 0 | - | 4.45 | 127,422 |
| Former Countries | 0 | - | 4.75 | 133,734 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,684 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,267 |
| Countries with Megacities | 0 | - | 4.99 | 262,473 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,097 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,121 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,399 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,171 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,666 |
| Countries by Official Language | 0 | - | 4.95 | 194,803 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,760 |
| Countries in their Native Language | 0 | - | 4.99 | 198,345 |
| Subdivisions by Country | 0 | - | 4.86 | 50,328 |
| Megadiverse Countries | 0 | - | 4.96 | 134,827 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,673 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,222 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,794 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,036 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,817 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,896 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,531 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,019 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,180 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,764 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,040 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,828 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,207 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,375 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,430 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,780 |
| Battle to Country | 0 | - | 4.91 | 53,252 |
| World Map Quiz | 0 | - | 4.81 | 64,734 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,992 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,122 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,709 |
| Countries by Road Signs | 0 | - | 4.98 | 53,733 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,662 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,019 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,752 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,590 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,621 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,769 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,905 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,318 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,356 |
| Widest Countries East to West | 0 | - | 4.92 | 129,444 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,405 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,062 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,032 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,582 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,322 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,638 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,278 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,742 |
| Countries with Double Letters | 0 | - | 4.97 | 95,253 |
| Countries that End in N | 0 | - | 4.95 | 170,260 |
| Countries with Five Letters | 0 | - | 4.96 | 280,995 |
| Countries with Six Letters | 0 | - | 4.94 | 212,691 |
| Countries with W | 0 | - | 4.97 | 159,637 |
| Countries with Z | 0 | - | 4.98 | 290,441 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,879 |
| Countries That End in U | 0 | - | 4.95 | 120,472 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,893 |
| Countries that End in O | 0 | - | 4.92 | 159,250 |
| Countries that End in R | 0 | - | 4.87 | 118,771 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,546 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,488 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,248 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,160 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,769 |
| Countries That End in Y | 0 | - | 4.91 | 185,685 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,425 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,522 |
| Countries that End in I | 0 | - | 4.94 | 134,911 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,584 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,623 |
| Countries That End in NIA | 0 | - | 4.92 | 109,572 |
| Countries That End in BIA | 0 | - | 4.93 | 148,919 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,820 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,142 |
| Countries That End in RIA | 0 | - | 4.93 | 126,593 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,730 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,931 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,334 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,714 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,244 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,386 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,741 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,318 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,234 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,243 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,918 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,648 |
| Countries that End in L | 0 | - | 4.94 | 156,603 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,434 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,171 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,881 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,782 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,827 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,935 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,306 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,726 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,234 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,727 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,647 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,989 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,617 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,725 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,548 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,049 |
| One Border Countries | 0 | - | 4.98 | 468,172 |
