| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 115,466 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,613,289 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,097,756 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,781 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,032 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,268 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,323 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,377 |
| Countries with Four Letters | 0 | - | 4.99 | 421,408 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,335 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,214 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,785 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,009 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,706 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,124 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,830 |
| Landforms by Country | 0 | - | 4.52 | 51,958 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,109 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,184 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,308,418 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,606 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,798 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,677 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,092 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 718,673 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 199,406 |
| Top Five Countries By Category #3 | 0 | - | 4.81 | 170,625 |
| Country Chain | 0 | - | 4.96 | 216,769 |
| Countries by Emojis | 0 | - | 4.99 | 238,510 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,644 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,816 |
| Islands by Country #1 | 0 | - | 4.88 | 175,052 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,332 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,686 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,595 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 215,833 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,869 |
| Name a Valid Country #3 | 0 | - | 4.99 | 262,406 |
| Name a Valid Country #1 | 0 | - | 4.99 | 288,457 |
| Name a Valid Country #2 | 0 | - | 4.98 | 249,938 |
| Name a Valid Country #4 | 0 | - | 4.97 | 254,856 |
| Name a Valid Country #5 | 0 | - | 4.99 | 206,215 |
| Name a Valid Country #6 | 0 | - | 4.94 | 128,867 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,736 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,591 |
| Landlocked Countries | 0 | - | 4.99 | 418,478 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,519 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,908 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,909 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,609 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,269 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,449 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,057 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,359 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,404 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,695 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,483 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 138,844 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 78,836 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,002 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,956 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,754,459 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,638 |
| Random Countries by Borders | 0 | - | 4.99 | 82,253 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,611 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,154 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 381,798 |
| African Great Lakes | 0 | - | 4.82 | 66,003 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,640 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,643 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,493 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,901 |
| Island Countries | 0 | - | 4.99 | 709,590 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,743 |
| Himalayan Countries | 0 | - | 4.94 | 137,209 |
| Andean Countries | 0 | - | 4.95 | 83,817 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,069 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,472 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,750 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,282 |
| Danube Countries | 0 | - | 4.97 | 71,604 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,478 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,006 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,564 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,626 |
| European Landlocked Countries | 0 | - | 4.99 | 146,717 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,058 |
| Countries with the Most Species | 0 | - | 4.99 | 102,859 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,195 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,411 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,570 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,273 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,947 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,325 |
| Countries in the Alps | 0 | - | 4.87 | 117,616 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,090 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,287 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,380 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,934 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,042 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,412 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,225 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,142 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,940 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,516 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,449 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,314 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,889 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,159 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,177 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,098 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,032 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,546 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,465 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,195 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,123 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,963 |
| Largest Countries By Category | 0 | - | 4.97 | 157,566 |
| Countries by Countries | 0 | - | 4.96 | 62,796 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,873 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,429 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,144 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,148 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 112,684 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,464 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,282 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,650 |
| Northernmost Countries | 0 | - | 4.99 | 360,298 |
| Countries of South America | 0 | - | 5.00 | 922,425 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,372 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,865,275 |
| "Land" Countries | 0 | - | 4.98 | 335,704 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,835 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,705 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,751 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,592 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,891 |
| Countries with Megacities | 0 | - | 4.99 | 256,852 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,757 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,916 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,057 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,920 |
| Countries by Official Language | 0 | - | 4.95 | 194,580 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,447 |
| Countries in their Native Language | 0 | - | 4.99 | 198,120 |
| Independence from Whom | 0 | - | 4.99 | 211,225 |
| Subdivisions by Country | 0 | - | 4.86 | 50,271 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,632 |
| Megadiverse Countries | 0 | - | 4.96 | 134,741 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,489 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,161 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,727 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,005 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,668 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,354 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,909 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,818 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,467 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,972 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,874 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,691 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,965 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,754 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,117 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,305 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,088 |
| World Map Quiz | 0 | - | 4.81 | 64,448 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,428 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,994 |
| Countries by Founding Story | 0 | - | 4.95 | 77,033 |
| Countries by Road Signs | 0 | - | 4.98 | 53,617 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,427 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,889 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,597 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,238 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,481 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,645 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,794 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,246 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,253 |
| Widest Countries East to West | 0 | - | 4.92 | 129,333 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,375 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,914 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,983 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,486 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,174 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,508 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,220 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,722 |
| Countries with Double Letters | 0 | - | 4.97 | 95,029 |
| Countries that End in N | 0 | - | 4.95 | 169,864 |
| Countries with Five Letters | 0 | - | 4.96 | 279,747 |
| Countries with Six Letters | 0 | - | 4.94 | 212,401 |
| Countries with W | 0 | - | 4.97 | 159,484 |
| Countries with Z | 0 | - | 4.98 | 289,723 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,676 |
| Countries That End in U | 0 | - | 4.95 | 120,385 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,698 |
| Countries that End in O | 0 | - | 4.92 | 159,174 |
| Countries that End in R | 0 | - | 4.87 | 118,719 |
