| Countries by Road Signs | 0 | - | 4.98 | 44,584 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,348,348 |
| Pixelated Africa Map | 0 | - | 4.98 | 86,945 |
| Pixelated Asia Map | 0 | - | 4.89 | 62,384 |
| Pixelated Europe Map | 0 | - | 4.89 | 108,341 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,363,612 |
| Countries of the World in 1900 | 0 | - | 4.88 | 64,610 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 168,323 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 125,806 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 316,322 |
| Countries by Satellite Image #1 | 0 | - | 4.87 | 127,940 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 75,151 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.87 | 44,040 |
| Countries by Partial Flag Images #1 | 0 | - | 4.97 | 111,675 |
| Countries by Partial Flag Images #3 | 0 | - | 4.99 | 87,636 |
| Flags with the Most Stars | 0 | - | 4.90 | 104,351 |
| Flags that are Red & White Only | 0 | - | 4.97 | 129,906 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 123,432 |
| Flags of the Countries with Four Letters | 0 | - | 4.93 | 33,707 |
| Four Countries with Similar Flags #2 | 0 | - | 4.88 | 34,627 |
| Four Countries with Similar Flags #1 | 0 | - | 4.98 | 42,393 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,006,753 |
| Country Flags with the Most Red | 0 | - | 4.97 | 89,388 |
| Country Flags with the Most Blue | 0 | - | 4.90 | 77,932 |
| Country Flags with the Most Green | 0 | - | 4.95 | 78,088 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 79,708 |
| Country Flags with the Most Yellow | 0 | - | 4.92 | 76,518 |
| Country Flags with the Most Black | 0 | - | 4.94 | 84,782 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.94 | 54,846 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.93 | 43,422 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 85,863 |
| Countries of the World in 1444 | 0 | - | 4.98 | 49,115 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 81,060 |
| Countries by Partial Flag Images #4 | 0 | - | 4.90 | 62,098 |
| Countries by Partial Flag Images #5 | 0 | - | 4.97 | 47,677 |
| Countries by Coat of Arms #1 | 0 | - | 4.95 | 57,735 |
| World Coats of Arms | 0 | - | 4.99 | 54,725 |
| Country Shape Quiz #1 | 0 | - | 4.92 | 829,711 |
| Country Shape Quiz #2 | 0 | - | 4.96 | 374,250 |
| Every Country Shape | 0 | - | 5.00 | 375,018 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 68,464 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 81,536 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 32,561 |
| Countries on the Equator | 0 | - | 4.82 | 131,541 |
| Members of the Arab League | 0 | - | 4.81 | 58,736 |
| Sahara Desert Countries | 0 | - | 4.97 | 124,847 |
| Himalayan Countries | 0 | - | 4.95 | 102,134 |
| Andean Countries | 0 | - | 4.90 | 56,726 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,543 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,474 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,767 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,440 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,627 |
| Danube Countries | 0 | - | 4.97 | 56,311 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,329 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,546 |
| Countries with the Best Passports | 0 | - | 4.86 | 70,157 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,662 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,046 |
| European Landlocked Countries | 0 | - | 4.99 | 114,778 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,611 |
| Countries with the Most Species | 0 | - | 4.99 | 89,052 |
| Countries 197 to 205 | 0 | - | 4.87 | 55,683 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,397 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,766 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,662 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,048 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,403 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,588 |
| Countries in the Alps | 0 | - | 4.82 | 101,482 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,494 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,529 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,048 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,604 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,238 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,782 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 88,949 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,683 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,012 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,057 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,820 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,298 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,366 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,840 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,416 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,880 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,316 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,882 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,867 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 191,922 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,001 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,885 |
| Largest Countries By Category | 0 | - | 4.96 | 143,690 |
| Countries by Countries | 0 | - | 4.95 | 53,947 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,465 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,315 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 44,396 |
| All Countries by Population With a Map | 0 | - | 4.98 | 60,311 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 75,825 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 77,161 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,084 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 350,958 |
| Island Countries Quiz | 0 | - | 4.99 | 637,339 |
| Biggest Countries by Area | 0 | - | 5.00 | 923,073 |
| Northernmost Countries | 0 | - | 4.99 | 324,956 |
| Countries of South America | 0 | - | 5.00 | 781,781 |
| Countries of Oceania | 0 | - | 5.00 | 879,449 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,099,565 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,547,086 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 144,665 |
| World Map without 12 Countries | 0 | - | 4.97 | 313,258 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 149,767 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 119,684 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 84,249 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 68,018 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 60,555 |
| Countries by Partial Flag Images #6 | 0 | - | 4.92 | 26,283 |
| Country Shape Quiz #3 | 0 | - | 4.92 | 265,448 |
| Country Shape Quiz #4 | 0 | - | 4.92 | 195,966 |
| Country Shape Quiz #5 | 0 | - | 4.93 | 137,715 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 89,787 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 98,743 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 108,536 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 96,775 |
| Country Shapes in the World Map #6 | 0 | - | 4.97 | 71,624 |
| Country Shapes in the World Map #7 | 0 | - | 4.98 | 49,088 |
| Country Shapes in the World Map #5 | 0 | - | 4.97 | 75,576 |
| Cartoon Versions of Countries | 0 | - | 4.99 | 85,974 |
| Country Shapes Under the Sea | 0 | - | 5.00 | 68,595 |
| A Square of Merged Countries #1 | 0 | - | 4.89 | 50,573 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 25,410 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 123,852 |
| Countries with Megacities | 0 | - | 4.99 | 194,290 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,049 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,649 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,404 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,516 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,560 |
| Countries by Official Language | 0 | - | 4.95 | 153,223 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,063 |
| Countries in their Native Language | 0 | - | 4.98 | 176,538 |
| Independence from Whom | 0 | - | 4.99 | 182,570 |
| Subdivisions by Country | 0 | - | 4.82 | 46,126 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,633 |
| Megadiverse Countries | 0 | - | 4.96 | 124,604 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,688 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,883 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,074 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 129,611 |
| Most Recently-Settled Countries | 0 | - | 4.91 | 48,537 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,407 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,188 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,415 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,918 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,685 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,720 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,256 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,439 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,817 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,650 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 91,342 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 79,648 |
| World Map Quiz | 0 | - | 4.90 | 47,915 |
| Empty World Map without 20 Random Countries | 0 | - | 4.92 | 97,717 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 110,045 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 67,950 |
| Countries Connected in the World Map #1 | 0 | - | 4.96 | 64,933 |
| Countries Connected in the World Map #3 | 0 | - | 4.96 | 64,326 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 140,680 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 63,506 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,608 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 47,707 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 50,624 |
| Random Flag to Country | 0 | - | 4.99 | 498,327 |
| Countries by Founding Story | 0 | - | 4.92 | 54,007 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,088 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 89,961 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 106,885 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,191 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,461 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,728 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,285 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,178 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,702 |
| Widest Countries East to West | 0 | - | 4.93 | 118,363 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,656 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,728 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,042 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,660 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,506 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,398 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,223 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,799 |
| Countries With the Tallest People | 0 | - | 4.87 | 75,569 |
| Countries with Double Letters | 0 | - | 4.96 | 66,329 |
| Countries that End in N | 0 | - | 4.94 | 130,732 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,216 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,015 |
| Countries with W | 0 | - | 4.97 | 121,048 |
| Countries with Z | 0 | - | 4.98 | 241,660 |
