| Spanish to English Country Names | 0 | - | 4.86 | 32,714 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,234 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,508 |
| Countries by Official Language | 0 | - | 4.95 | 194,388 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,204 |
| Countries in their Native Language | 0 | - | 4.99 | 197,956 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,092 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,200 |
| French-Speaking Countries | 0 | - | 4.85 | 269,989 |
| German-Speaking Countries | 0 | - | 4.91 | 144,864 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,239,013 |
| Landlocked Countries | 0 | - | 4.99 | 417,555 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,840 |
| English Speaking Countries | 0 | - | 4.64 | 356,885 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,747,969 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,263 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,347 |
| Himalayan Countries | 0 | - | 4.95 | 136,870 |
| Andean Countries | 0 | - | 4.95 | 83,654 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,916 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,237 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,585 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,171 |
| Danube Countries | 0 | - | 4.97 | 71,518 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,350 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,933 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,379 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,429 |
| European Landlocked Countries | 0 | - | 4.99 | 146,233 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,936 |
| Countries with the Most Species | 0 | - | 4.99 | 102,584 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,060 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,373 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,546 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,220 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,881 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,264 |
| Countries in the Alps | 0 | - | 4.86 | 117,479 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,998 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,107 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,333 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,836 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,937 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,354 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,112 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,074 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,882 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,423 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,416 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,261 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,823 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,086 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,097 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,927 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,967 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,492 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,354 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,594 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,873 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,898 |
| Largest Countries By Category | 0 | - | 4.97 | 157,425 |
| Countries by Countries | 0 | - | 4.96 | 62,709 |
| Country Flags with the Most White | 0 | - | 4.87 | 138,005 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,118 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,438 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,513 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,194 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,863 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,402 |
| Island Countries | 0 | - | 4.99 | 709,224 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,602 |
| Northernmost Countries | 0 | - | 4.99 | 359,896 |
| Countries of South America | 0 | - | 5.00 | 921,175 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,854 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,862,141 |
| "Land" Countries | 0 | - | 4.98 | 335,402 |
| Top World Languages | 0 | - | 4.92 | 818,725 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,577 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,804 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,587 |
| Countries with Megacities | 0 | - | 4.99 | 249,608 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,438 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,736 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,782 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,699 |
| Independence from Whom | 0 | - | 4.99 | 211,054 |
| Subdivisions by Country | 0 | - | 4.86 | 50,239 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,508 |
| Megadiverse Countries | 0 | - | 4.96 | 134,672 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,131 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,686 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,976 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,556 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,292 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,766 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,689 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,431 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,826 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,569 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,639 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,736 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,702 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,918 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,266 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,836 |
| World Map Quiz | 0 | - | 4.81 | 64,292 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,903 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,867 |
| Countries by Founding Story | 0 | - | 4.95 | 76,960 |
| Countries by Road Signs | 0 | - | 4.98 | 53,520 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,254 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,791 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,512 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,996 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,386 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,569 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,723 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,194 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,186 |
| Widest Countries East to West | 0 | - | 4.92 | 129,250 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,351 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,786 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,962 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,412 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,079 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,440 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,175 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,703 |
| Countries with Double Letters | 0 | - | 4.97 | 94,763 |
| Countries that End in N | 0 | - | 4.95 | 169,188 |
| Countries with Five Letters | 0 | - | 4.96 | 276,453 |
| Countries with Six Letters | 0 | - | 4.94 | 212,092 |
| Countries with W | 0 | - | 4.97 | 159,275 |
| Countries with Z | 0 | - | 4.98 | 289,438 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,479 |
| Countries That End in U | 0 | - | 4.95 | 120,273 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,499 |
| Countries that End in O | 0 | - | 4.92 | 159,085 |
| Countries that End in R | 0 | - | 4.87 | 118,644 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,422 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,070 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,940 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,958 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,549 |
| Countries That End in Y | 0 | - | 4.90 | 185,562 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,038 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,261 |
| Countries that End in I | 0 | - | 4.94 | 134,766 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,866 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,491 |
| Countries That End in NIA | 0 | - | 4.92 | 109,413 |
| Countries That End in BIA | 0 | - | 4.93 | 148,704 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,566 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,919 |
| Countries That End in RIA | 0 | - | 4.93 | 126,432 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,509 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,354 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,026 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,364 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,974 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,243 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,569 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,102 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,991 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,123 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,683 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,364 |
| Countries that End in L | 0 | - | 4.94 | 156,438 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,468 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,128 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,769 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,634 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,692 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,497 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,944 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,478 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,925 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,395 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,126 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,900 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,322 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,558 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,578 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,200 |
| Places in their Native Language #2 | 0 | - | 4.82 | 132,425 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,427 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,242 |
| One Border Countries | 0 | - | 4.98 | 467,003 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,817,542 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,608,916 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,720 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,399 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,121 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,487 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,172 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,211 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,771 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,268 |
| Countries by National Anthem | 0 | - | 4.92 | 71,153 |
| NATO Countries | 0 | - | 4.98 | 278,671 |
