| Countries by Road Signs | 0 | - | 4.98 | 54,144 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,839,582 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,197 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,539 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,150 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,639,295 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,682,746 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,464 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,080 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,588 |
| Landlocked Countries | 0 | - | 4.99 | 423,241 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 581,256 |
| World Map without 12 Countries | 0 | - | 4.97 | 345,339 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,408 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,964 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,121 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,581 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,721 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,284 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,800 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,044 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 146,731 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,992 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,022 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,953 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,959 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,945 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,021 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,827 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,447 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,878 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,909 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,316 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,205 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,530 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,675 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,793 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,153 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,348 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,431 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,349 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,919 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,571 |
| World Coats of Arms | 0 | - | 4.99 | 64,829 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 908,596 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,719 |
| Every Country Shape | 0 | - | 5.00 | 468,718 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,787,610 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,508 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,653 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,096 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,756 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,105 |
| Himalayan Countries | 0 | - | 4.94 | 139,282 |
| Andean Countries | 0 | - | 4.93 | 84,918 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,135 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,296 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,712 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,029 |
| Danube Countries | 0 | - | 4.97 | 72,153 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,226 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,564 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,577 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,085 |
| European Landlocked Countries | 0 | - | 4.99 | 147,303 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,870 |
| Countries with the Most Species | 0 | - | 4.99 | 103,359 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,005 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,656 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,773 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,635 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,389 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,804 |
| Countries in the Alps | 0 | - | 4.87 | 118,407 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,845 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,321 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,769 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,742 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,654 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,061 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,846 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,627 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,259 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,980 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,732 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,603 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,341 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,586 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,657 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,224 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,426 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,897 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,279 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,612 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,486 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,332 |
| Largest Countries By Category | 0 | - | 4.97 | 158,441 |
| Countries by Countries | 0 | - | 4.96 | 63,383 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,897 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,330 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,597 |
| All Countries by Population With a Map | 0 | - | 4.99 | 110,056 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,156 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,818 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,714 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,919 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,145 |
| Island Countries | 0 | - | 4.99 | 711,519 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,493 |
| Northernmost Countries | 0 | - | 4.99 | 362,612 |
| Countries of South America | 0 | - | 5.00 | 929,126 |
| Countries of Oceania | 0 | - | 5.00 | 1,059,120 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,881,280 |
| "Land" Countries | 0 | - | 4.98 | 337,697 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,670 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,071 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 138,939 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,386,905 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,305 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,202 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,015 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,671 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,247 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 164,760 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 39,069 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.98 | 33,155 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 104,845 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 111,871 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,511 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,641 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,930 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,444 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 86,144 |
| Cartoon Versions of Countries | 0 | - | 4.99 | 95,523 |
| Country Shapes Under the Sea | 0 | - | 5.00 | 78,046 |
| A Square of Merged Countries #1 | 0 | - | 4.89 | 59,852 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,112 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,280 |
| Countries with Megacities | 0 | - | 4.99 | 265,464 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,103 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,671 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,346 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,741 |
| Countries by Official Language | 0 | - | 4.95 | 195,511 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,744 |
| Countries in their Native Language | 0 | - | 4.99 | 199,298 |
| Independence from Whom | 0 | - | 4.99 | 212,387 |
| Subdivisions by Country | 0 | - | 4.87 | 50,496 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,953 |
| Megadiverse Countries | 0 | - | 4.96 | 135,111 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,320 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,425 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,309 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,144 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,301 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,667 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,645 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,429 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,720 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,190 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,961 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,973 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,285 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,024 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,448 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,562 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,828 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,614 |
| World Map Quiz | 0 | - | 4.81 | 65,279 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 139,076 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,935 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 80,909 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 77,588 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 76,834 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 155,250 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 73,929 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,471 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 55,392 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,300 |
| Countries by Sports in 60 Seconds | 0 | - | 4.92 | 146,806 |
| 20 Random Country Flags | 0 | - | 4.99 | 615,959 |
| Countries by Founding Story | 0 | - | 4.95 | 77,473 |
| Countries That Do Not Border | 0 | - | 4.99 | 60,611 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,358 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,441 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,145 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,659 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,047 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,154 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,416 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,510 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,667 |
| Widest Countries East to West | 0 | - | 4.92 | 129,778 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,483 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,755 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,400 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,861 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,732 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,994 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,422 |
