| Spanish-Speaking Countries | 0 | - | 4.95 | 372,469 |
| Countries by Official Language | 0 | - | 4.95 | 192,965 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,419 |
| Countries in their Native Language | 0 | - | 4.99 | 196,823 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,998 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,702 |
| French-Speaking Countries | 0 | - | 4.85 | 269,076 |
| German-Speaking Countries | 0 | - | 4.89 | 123,562 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,198 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,996,720 |
| Landlocked Countries | 0 | - | 4.99 | 414,537 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,520 |
| English Speaking Countries | 0 | - | 4.64 | 356,211 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,724,559 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,982 |
| Himalayan Countries | 0 | - | 4.95 | 135,687 |
| Andean Countries | 0 | - | 4.94 | 83,021 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,370 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,425 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,065 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,732 |
| Danube Countries | 0 | - | 4.97 | 71,175 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,890 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,633 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,693 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,597 |
| European Landlocked Countries | 0 | - | 4.99 | 145,874 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,356 |
| Countries with the Most Species | 0 | - | 4.99 | 95,298 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,521 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,235 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,403 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,012 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,652 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,021 |
| Countries in the Alps | 0 | - | 4.86 | 116,975 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,680 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,443 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,103 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,507 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,293 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,086 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,689 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,835 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,590 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,149 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,230 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,097 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,530 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,825 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,827 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,277 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,732 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,308 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,931 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,813 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,982 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,682 |
| Largest Countries By Category | 0 | - | 4.97 | 156,906 |
| Countries by Countries | 0 | - | 4.96 | 62,355 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,547 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,997 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,356 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,850 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,327 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,104 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,305 |
| Island Countries | 0 | - | 4.99 | 707,983 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,726 |
| Northernmost Countries | 0 | - | 4.99 | 358,236 |
| Countries of South America | 0 | - | 5.00 | 916,362 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,562 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,654 |
| "Land" Countries | 0 | - | 4.98 | 333,907 |
| Top World Languages | 0 | - | 4.92 | 814,383 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,331 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,962 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,686 |
| Countries with Megacities | 0 | - | 4.99 | 247,707 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,538 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,229 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,929 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,169 |
| Independence from Whom | 0 | - | 4.99 | 209,935 |
| Subdivisions by Country | 0 | - | 4.86 | 50,112 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,924 |
| Megadiverse Countries | 0 | - | 4.97 | 133,972 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,965 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,478 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,884 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,782 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,065 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,208 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,226 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,260 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,767 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,761 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,462 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,564 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,551 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,743 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,073 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,866 |
| World Map Quiz | 0 | - | 4.81 | 63,677 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,214 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,431 |
| Countries by Founding Story | 0 | - | 4.95 | 76,634 |
| Countries by Road Signs | 0 | - | 4.98 | 53,206 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,595 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,372 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,112 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,068 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,009 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,205 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,405 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,017 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,452 |
| Widest Countries East to West | 0 | - | 4.92 | 128,953 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,258 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,360 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,614 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,776 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,719 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,148 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 73,862 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,623 |
| Countries with Double Letters | 0 | - | 4.96 | 93,570 |
| Countries that End in N | 0 | - | 4.94 | 157,053 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,887 |
| Countries with Six Letters | 0 | - | 4.93 | 210,553 |
| Countries with W | 0 | - | 4.97 | 158,349 |
| Countries with Z | 0 | - | 4.98 | 288,082 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,670 |
| Countries That End in U | 0 | - | 4.95 | 119,585 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,769 |
| Countries that End in O | 0 | - | 4.92 | 158,615 |
| Countries that End in R | 0 | - | 4.87 | 118,335 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,903 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,282 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,463 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,588 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,127 |
| Countries That End in Y | 0 | - | 4.90 | 185,253 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,516 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,813 |
| Countries that End in I | 0 | - | 4.94 | 134,495 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,352 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,253 |
| Countries That End in NIA | 0 | - | 4.92 | 109,073 |
| Countries That End in BIA | 0 | - | 4.92 | 147,796 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,177 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,581 |
| Countries That End in RIA | 0 | - | 4.93 | 126,150 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,108 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,547 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,614 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,979 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,468 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,977 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,210 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,734 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,609 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,855 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,249 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,918 |
| Countries that End in L | 0 | - | 4.94 | 156,104 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,738 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,007 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,574 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,373 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,482 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,701 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,480 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 140,383 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,526 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,884 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,832 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,769 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,217 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,445 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,380 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,676 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,065 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,675 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,035 |
| One Border Countries | 0 | - | 4.98 | 465,028 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,804,808 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,592,703 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,057 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,320 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,064 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,575 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,850 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,437 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,756 |
| Countries by National Anthem | 0 | - | 4.92 | 71,052 |
| NATO Countries | 0 | - | 4.98 | 276,622 |
| EU Countries Quiz | 0 | - | 4.99 | 270,474 |
| Recently Independent Countries | 0 | - | 4.98 | 158,101 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,418 |
