| Spanish to English Country Names | 0 | - | 4.86 | 33,016 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,869 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,625 |
| Countries by Official Language | 0 | - | 4.95 | 194,830 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,792 |
| Countries in their Native Language | 0 | - | 4.99 | 198,377 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,705 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,349 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,413,374 |
| French-Speaking Countries | 0 | - | 4.85 | 270,413 |
| German-Speaking Countries | 0 | - | 4.91 | 145,496 |
| Landlocked Countries | 0 | - | 4.99 | 419,897 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,117 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,505 |
| English Speaking Countries | 0 | - | 4.64 | 357,248 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,763,610 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,424 |
| Himalayan Countries | 0 | - | 4.95 | 137,855 |
| Andean Countries | 0 | - | 4.95 | 84,137 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,358 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,921 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,999 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,467 |
| Danube Countries | 0 | - | 4.97 | 71,759 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,694 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,156 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,844 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,921 |
| European Landlocked Countries | 0 | - | 4.99 | 146,889 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,269 |
| Countries with the Most Species | 0 | - | 4.99 | 103,028 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,431 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,464 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,635 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,388 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,064 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,461 |
| Countries in the Alps | 0 | - | 4.87 | 117,867 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,940 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,584 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,487 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,371 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,227 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,794 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,394 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,273 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,036 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,642 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,534 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,383 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,006 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,290 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,305 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,418 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,131 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,638 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,695 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,866 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,499 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,057 |
| Largest Countries By Category | 0 | - | 4.97 | 157,818 |
| Countries by Countries | 0 | - | 4.97 | 62,943 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,368 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,186 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,495 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,878 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,743 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,443 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,834 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,896 |
| Island Countries | 0 | - | 4.99 | 710,163 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,047,165 |
| Northernmost Countries | 0 | - | 4.99 | 360,957 |
| Countries of South America | 0 | - | 5.00 | 924,290 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,073 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,869,950 |
| "Land" Countries | 0 | - | 4.98 | 336,047 |
| Top World Languages | 0 | - | 4.92 | 821,467 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,378,123 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,716 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,307 |
| Countries with Megacities | 0 | - | 4.99 | 262,720 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,150 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,146 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,451 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,193 |
| Independence from Whom | 0 | - | 4.99 | 211,585 |
| Subdivisions by Country | 0 | - | 4.86 | 50,337 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,884 |
| Megadiverse Countries | 0 | - | 4.96 | 134,838 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,227 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,804 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,044 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,844 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,449 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,122 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,903 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,536 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,026 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,236 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,770 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,055 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,838 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,221 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,387 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,492 |
| World Map Quiz | 0 | - | 4.81 | 64,770 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,084 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,140 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,888 |
| Countries by Founding Story | 0 | - | 4.95 | 77,155 |
| Countries by Road Signs | 0 | - | 4.98 | 53,753 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,689 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,042 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,771 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,631 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,642 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,783 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,918 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,331 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,374 |
| Widest Countries East to West | 0 | - | 4.92 | 129,455 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,407 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,092 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,038 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,595 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,338 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,656 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,286 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,748 |
| Countries With the Tallest People | 0 | - | 4.93 | 94,871 |
| Countries with Double Letters | 0 | - | 4.97 | 95,293 |
| Countries that End in N | 0 | - | 4.95 | 170,307 |
| Countries with Five Letters | 0 | - | 4.96 | 281,091 |
| Countries with Six Letters | 0 | - | 4.94 | 212,730 |
| Countries with W | 0 | - | 4.97 | 159,653 |
| Countries with Z | 0 | - | 4.98 | 290,523 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,907 |
| Countries That End in U | 0 | - | 4.95 | 120,486 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,924 |
| Countries that End in O | 0 | - | 4.92 | 159,264 |
| Countries that End in R | 0 | - | 4.87 | 118,780 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,554 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,521 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,278 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,177 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,787 |
| Countries That End in Y | 0 | - | 4.91 | 185,694 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,455 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,548 |
| Countries that End in I | 0 | - | 4.94 | 134,924 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,656 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,639 |
| Countries That End in NIA | 0 | - | 4.92 | 109,586 |
| Countries That End in BIA | 0 | - | 4.93 | 148,936 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,839 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,164 |
| Countries That End in RIA | 0 | - | 4.93 | 126,602 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,741 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,976 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,358 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,740 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,269 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,392 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,756 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,336 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,248 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,255 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,939 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,668 |
| Countries that End in L | 0 | - | 4.94 | 156,619 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,531 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,177 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,894 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,791 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,842 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,976 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,328 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,747 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,259 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,758 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,657 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,000 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,625 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,738 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,819 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,815 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,122 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,826,683 |
| One Border Countries | 0 | - | 4.98 | 468,293 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,620,356 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,875 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,663 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,654 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,823 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,355 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,486 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,031 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,368 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,932 |
