| Countries by Road Signs | 0 | - | 4.98 | 53,411 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,813,454 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,405 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,777 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,233 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,604,131 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,161,682 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,142 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,115 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,818 |
| Landlocked Countries | 0 | - | 4.99 | 416,626 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 561,803 |
| World Map without 12 Countries | 0 | - | 4.97 | 343,332 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,918 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,184 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,604 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,813 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,155 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,669 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,791 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,561 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,309 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,305 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,068 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,050 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,880 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,102 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,191 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,960 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,650 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,141 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,480 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,871 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,179 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,891 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,125 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,023 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,339 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,529 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,667 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,534 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,375 |
| World Coats of Arms | 0 | - | 4.99 | 64,133 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 905,523 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,722 |
| Every Country Shape | 0 | - | 5.00 | 461,736 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,740,451 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,662 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,227 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,771 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,093 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,914 |
| Himalayan Countries | 0 | - | 4.95 | 136,490 |
| Andean Countries | 0 | - | 4.95 | 83,486 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,746 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,990 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,417 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,024 |
| Danube Countries | 0 | - | 4.97 | 71,427 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,209 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,846 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,150 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,114 |
| European Landlocked Countries | 0 | - | 4.99 | 146,128 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,757 |
| Countries with the Most Species | 0 | - | 4.99 | 101,481 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,894 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,328 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,508 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,158 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,809 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,188 |
| Countries in the Alps | 0 | - | 4.86 | 117,320 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,899 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,886 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,251 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,739 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,816 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,251 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,981 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,993 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,802 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,327 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,364 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,203 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,725 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,992 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,001 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,709 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,890 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,428 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,244 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,994 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,563 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,825 |
| Largest Countries By Category | 0 | - | 4.97 | 157,252 |
| Countries by Countries | 0 | - | 4.96 | 62,592 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,868 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,079 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,409 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,732 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,393 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,083 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,828 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,825 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,763 |
| Island Countries | 0 | - | 4.99 | 708,801 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,309 |
| Northernmost Countries | 0 | - | 4.99 | 359,367 |
| Countries of South America | 0 | - | 5.00 | 919,659 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,621 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,858,680 |
| "Land" Countries | 0 | - | 4.98 | 334,595 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,797 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,361 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,565 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,404 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,744 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,418 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,463 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,403 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,162 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,870 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 163,486 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 35,420 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,708 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,997 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,648 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,629 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,280 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,830 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,335 |
| Cartoon Versions of Countries | 0 | - | 4.99 | 94,902 |
| Country Shapes Under the Sea | 0 | - | 5.00 | 77,408 |
| A Square of Merged Countries #1 | 0 | - | 4.88 | 59,218 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,824 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,270 |
| Countries with Megacities | 0 | - | 4.99 | 248,926 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,120 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,541 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,480 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,496 |
| Countries by Official Language | 0 | - | 4.95 | 194,004 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,532 |
| Countries in their Native Language | 0 | - | 4.99 | 197,630 |
| Independence from Whom | 0 | - | 4.99 | 210,800 |
| Subdivisions by Country | 0 | - | 4.86 | 50,196 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,322 |
| Megadiverse Countries | 0 | - | 4.96 | 134,536 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,823 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,073 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,625 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,948 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,437 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,210 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,574 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,545 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,369 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,805 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,156 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,579 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,684 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,640 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,857 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,199 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,097 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,555 |
| World Map Quiz | 0 | - | 4.81 | 64,081 |
| Empty World Map without 20 Random Countries | 0 | - | 4.93 | 136,382 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,367 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 79,997 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 76,675 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 75,932 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 153,933 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 73,124 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,691 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 54,805 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,512 |
| Countries by Sports in 60 Seconds | 0 | - | 4.91 | 142,754 |
| 20 Random Country Flags | 0 | - | 4.99 | 608,122 |
| Countries by Founding Story | 0 | - | 4.95 | 76,866 |
| Countries That Do Not Border | 0 | - | 4.99 | 59,756 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.98 | 29,507 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,058 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,665 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,394 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,700 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,265 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,458 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,622 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,146 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,636 |
| Widest Countries East to West | 0 | - | 4.92 | 129,137 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,329 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,639 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,914 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,955 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,977 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,353 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,092 |
