| Independence from Whom | 0 | - | 4.99 | 209,952 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,933 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,070 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,216 |
| Countries by Founding Story | 0 | - | 4.95 | 76,637 |
| Landlocked Countries | 0 | - | 4.99 | 414,604 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,000,972 |
| Recently Independent Countries | 0 | - | 4.98 | 158,105 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,698 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,445 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,200 |
| Countries by Former Name | 0 | - | 4.99 | 124,425 |
| Historical City to Country | 0 | - | 4.84 | 78,197 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,001 |
| Himalayan Countries | 0 | - | 4.95 | 135,709 |
| Andean Countries | 0 | - | 4.94 | 83,029 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,377 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,440 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,079 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,737 |
| Danube Countries | 0 | - | 4.97 | 71,184 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,901 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,640 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,706 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,609 |
| European Landlocked Countries | 0 | - | 4.99 | 145,880 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,367 |
| Countries with the Most Species | 0 | - | 4.99 | 95,299 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,534 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,238 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,406 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,019 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,655 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,023 |
| Countries in the Alps | 0 | - | 4.86 | 116,986 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,683 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,461 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,107 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,513 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,298 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,094 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,700 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,843 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,598 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,153 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,232 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,102 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,539 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,829 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,831 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,296 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,738 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,312 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,939 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,851 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,000 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,683 |
| Largest Countries By Category | 0 | - | 4.97 | 156,911 |
| Countries by Countries | 0 | - | 4.96 | 62,365 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,551 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,000 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,358 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,213 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,860 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,724,968 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,443 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,445 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,380 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,732 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,653 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,914 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,352 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,943 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,305 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,816 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,852 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,956 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,192 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,491 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,348 |
| Island Countries | 0 | - | 4.99 | 708,014 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,807 |
| Northernmost Countries | 0 | - | 4.99 | 358,272 |
| Countries of South America | 0 | - | 5.00 | 916,620 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,638 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,835 |
| "Land" Countries | 0 | - | 4.98 | 333,916 |
| Former Countries by Capital | 0 | - | 4.45 | 127,114 |
| Former Countries | 0 | - | 4.75 | 132,804 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,110 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,701 |
| Countries with Megacities | 0 | - | 4.99 | 247,755 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,555 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,239 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,954 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,184 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,708 |
| Countries by Official Language | 0 | - | 4.95 | 192,980 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,433 |
| Countries in their Native Language | 0 | - | 4.99 | 196,840 |
| Subdivisions by Country | 0 | - | 4.86 | 50,115 |
| Megadiverse Countries | 0 | - | 4.97 | 133,981 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,008 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,967 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,482 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,886 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,786 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,230 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,264 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,767 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,767 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,466 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,567 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,556 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,748 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,077 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,891 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,198 |
| Battle to Country | 0 | - | 4.91 | 52,623 |
| World Map Quiz | 0 | - | 4.81 | 63,683 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,249 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,439 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,293 |
| Countries by Road Signs | 0 | - | 4.98 | 53,211 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,606 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,380 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,121 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,097 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,021 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,212 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,416 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,019 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,456 |
| Widest Countries East to West | 0 | - | 4.92 | 128,954 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,260 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,365 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,615 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,783 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,725 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,153 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 74,195 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,625 |
| Countries with Double Letters | 0 | - | 4.96 | 93,580 |
| Countries that End in N | 0 | - | 4.94 | 157,059 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,899 |
| Countries with Six Letters | 0 | - | 4.93 | 210,562 |
| Countries with W | 0 | - | 4.97 | 158,354 |
| Countries with Z | 0 | - | 4.98 | 288,090 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,678 |
| Countries That End in U | 0 | - | 4.95 | 119,588 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,781 |
| Countries that End in O | 0 | - | 4.92 | 158,616 |
| Countries that End in R | 0 | - | 4.87 | 118,337 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,907 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,298 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,468 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,591 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,132 |
| Countries That End in Y | 0 | - | 4.90 | 185,258 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,524 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,821 |
| Countries that End in I | 0 | - | 4.94 | 134,499 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,358 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,258 |
| Countries That End in NIA | 0 | - | 4.92 | 109,077 |
| Countries That End in BIA | 0 | - | 4.92 | 147,800 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,183 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,585 |
| Countries That End in RIA | 0 | - | 4.93 | 126,154 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,114 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,555 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,618 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,981 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,475 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,980 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,214 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,737 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,618 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,857 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,251 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,922 |
| Countries that End in L | 0 | - | 4.94 | 156,110 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,766 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,010 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,581 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,384 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,484 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,737 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,500 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 140,717 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,548 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,917 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,848 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,774 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,221 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,447 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,386 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,784 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,059 |
| One Border Countries | 0 | - | 4.98 | 465,075 |
