| Spanish-Speaking Countries | 0 | - | 4.95 | 372,673 |
| Countries by Official Language | 0 | - | 4.95 | 193,113 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,613 |
| Countries in their Native Language | 0 | - | 4.99 | 196,957 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,116 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,754 |
| French-Speaking Countries | 0 | - | 4.85 | 269,222 |
| German-Speaking Countries | 0 | - | 4.89 | 123,591 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,276 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,037,153 |
| Landlocked Countries | 0 | - | 4.99 | 415,108 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,565 |
| English Speaking Countries | 0 | - | 4.64 | 356,305 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,728,865 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,188 |
| Himalayan Countries | 0 | - | 4.95 | 135,893 |
| Andean Countries | 0 | - | 4.94 | 83,127 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,454 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,565 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,155 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,804 |
| Danube Countries | 0 | - | 4.97 | 71,244 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,963 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,683 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,814 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,737 |
| European Landlocked Countries | 0 | - | 4.99 | 145,944 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,478 |
| Countries with the Most Species | 0 | - | 4.99 | 95,326 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,609 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,257 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,431 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,048 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,702 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,060 |
| Countries in the Alps | 0 | - | 4.86 | 117,086 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,733 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,545 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,144 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,564 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,353 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,125 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,765 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,883 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,666 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,194 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,263 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,130 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,599 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,860 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,874 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,410 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,777 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,341 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,986 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,137 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,125 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,711 |
| Largest Countries By Category | 0 | - | 4.97 | 156,990 |
| Countries by Countries | 0 | - | 4.96 | 62,419 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,624 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,013 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,375 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,918 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,367 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,629 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,640 |
| Island Countries | 0 | - | 4.99 | 708,230 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,427 |
| Northernmost Countries | 0 | - | 4.99 | 358,585 |
| Countries of South America | 0 | - | 5.00 | 917,431 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,592 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,456 |
| "Land" Countries | 0 | - | 4.98 | 334,041 |
| Top World Languages | 0 | - | 4.92 | 815,103 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,381 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,337 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,842 |
| Countries with Megacities | 0 | - | 4.99 | 248,051 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,714 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,309 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,100 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,262 |
| Independence from Whom | 0 | - | 4.99 | 210,091 |
| Subdivisions by Country | 0 | - | 4.86 | 50,131 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,027 |
| Megadiverse Countries | 0 | - | 4.97 | 134,239 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,002 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,525 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,900 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,855 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,109 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,296 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,391 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,283 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,778 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,868 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,502 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,606 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,574 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,781 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,112 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,048 |
| World Map Quiz | 0 | - | 4.81 | 63,753 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,509 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,550 |
| Countries by Founding Story | 0 | - | 4.95 | 76,693 |
| Countries by Road Signs | 0 | - | 4.98 | 53,257 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,735 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,487 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,210 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,243 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,085 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,290 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,477 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,060 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,509 |
| Widest Countries East to West | 0 | - | 4.92 | 129,007 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,281 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,454 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,640 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,845 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,796 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,206 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 76,409 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,635 |
| Countries with Double Letters | 0 | - | 4.96 | 93,654 |
| Countries that End in N | 0 | - | 4.94 | 157,113 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,991 |
| Countries with Six Letters | 0 | - | 4.93 | 210,651 |
| Countries with W | 0 | - | 4.97 | 158,405 |
| Countries with Z | 0 | - | 4.98 | 288,203 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,743 |
| Countries That End in U | 0 | - | 4.95 | 119,600 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,849 |
| Countries that End in O | 0 | - | 4.92 | 158,640 |
| Countries that End in R | 0 | - | 4.87 | 118,365 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,924 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,384 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,523 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,633 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,181 |
| Countries That End in Y | 0 | - | 4.90 | 185,279 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,596 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,881 |
| Countries that End in I | 0 | - | 4.94 | 134,527 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,439 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,287 |
| Countries That End in NIA | 0 | - | 4.92 | 109,109 |
| Countries That End in BIA | 0 | - | 4.92 | 147,843 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,235 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,623 |
| Countries That End in RIA | 0 | - | 4.93 | 126,189 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,164 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,669 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,656 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,014 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,560 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,016 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,271 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,779 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,669 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,885 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,327 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,975 |
| Countries that End in L | 0 | - | 4.94 | 156,146 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,035 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,019 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,615 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,439 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,513 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,920 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,602 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,575 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,625 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,995 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,904 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,805 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,237 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,460 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,405 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,786 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,138 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,567 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,276 |
| One Border Countries | 0 | - | 4.98 | 465,510 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,807,017 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,595,654 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,131 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,474 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,131 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,610 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,919 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,489 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,944 |
| Countries by National Anthem | 0 | - | 4.93 | 71,070 |
| NATO Countries | 0 | - | 4.98 | 277,088 |
| EU Countries Quiz | 0 | - | 4.99 | 270,811 |
| Recently Independent Countries | 0 | - | 4.98 | 158,175 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,440 |
