| Landlocked Countries Quiz | 0 | - | 4.99 | 392,002 |
| Countries of the World Quiz | 0 | - | 5.00 | 45,032,671 |
| Sahara Desert Countries | 0 | - | 4.98 | 150,287 |
| Himalayan Countries | 0 | - | 4.94 | 126,364 |
| Andean Countries | 0 | - | 4.93 | 71,133 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 58,546 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 116,293 |
| Coffee Producing Countries | 0 | - | 4.83 | 61,884 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 60,969 |
| Danube Countries | 0 | - | 4.97 | 61,965 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 98,398 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 82,956 |
| Countries with the Worst Passports | 0 | - | 4.92 | 76,108 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 141,571 |
| European Landlocked Countries | 0 | - | 4.99 | 142,680 |
| Partially Recognized Countries | 0 | - | 4.98 | 100,302 |
| Countries with the Most Species | 0 | - | 4.99 | 93,326 |
| Countries 197 to 205 | 0 | - | 4.88 | 65,214 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 47,177 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,272 |
| Countries that Use the Peso | 0 | - | 4.89 | 57,195 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 70,713 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 54,676 |
| Countries in the Alps | 0 | - | 4.86 | 112,362 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 91,855 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 99,935 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,226 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 92,020 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 112,223 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 92,823 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,403 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 50,690 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,648 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 59,727 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 51,866 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,661 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 101,025 |
| Arctic Ocean Countries | 0 | - | 4.94 | 76,687 |
| Countries with the Most Grassland | 0 | - | 4.93 | 74,538 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 111,446 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 65,638 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,543 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 40,962 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 227,277 |
| World Countries - Blind Typing | 0 | - | 5.00 | 98,272 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,885 |
| Largest Countries By Category | 0 | - | 4.97 | 152,829 |
| Countries by Countries | 0 | - | 4.96 | 59,506 |
| Country Flags with the Most White | 0 | - | 4.85 | 133,569 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,033 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 85,071 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,461,207 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,539,980 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 363,544 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 387,628 |
| Island Countries Quiz | 0 | - | 4.99 | 696,308 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,008,376 |
| Northernmost Countries | 0 | - | 4.99 | 345,557 |
| Countries of South America | 0 | - | 5.00 | 877,313 |
| Countries of Oceania | 0 | - | 5.00 | 993,730 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,762,369 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 163,341 |
| Countries with Megacities | 0 | - | 4.99 | 223,045 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 190,032 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,943 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 129,317 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 75,391 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 304,196 |
| Countries by Official Language | 0 | - | 4.95 | 186,448 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 285,203 |
| Countries in their Native Language | 0 | - | 4.98 | 190,747 |
| Independence from Whom | 0 | - | 4.99 | 202,983 |
| Subdivisions by Country | 0 | - | 4.86 | 49,029 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 126,000 |
| Megadiverse Countries | 0 | - | 4.97 | 131,415 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 124,377 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,482 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 122,812 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 73,603 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,618 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 157,127 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,361 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 88,958 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,278 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,141 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,680 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 70,049 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,411 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,614 |
| Countries with the Highest HDI | 0 | - | 4.95 | 135,091 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 72,845 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,304 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,291,856 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 101,182 |
| World Map Quiz | 0 | - | 4.85 | 59,382 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 87,944 |
| Southernmost Countries of the World | 0 | - | 4.99 | 220,694 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 100,392 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 118,005 |
| Countries With the Most Languages | 0 | - | 4.89 | 192,386 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 98,312 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 89,781 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 94,990 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 59,107 |
| Tallest Countries North to South | 0 | - | 4.83 | 116,768 |
| Widest Countries East to West | 0 | - | 4.92 | 125,930 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,486 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 181,814 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 96,063 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 91,302 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 126,461 |
| Countries with the Most Desert | 0 | - | 4.93 | 124,293 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,331 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 33,881 |
| Countries with Double Letters | 0 | - | 4.97 | 86,496 |
| Countries that End in N | 0 | - | 4.93 | 149,930 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 250,516 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 204,042 |
| Countries with W | 0 | - | 4.97 | 152,974 |
| Countries with Z | 0 | - | 4.98 | 280,081 |
| Countries with Letters Missing | 0 | - | 4.97 | 179,513 |
| Countries That End in U | 0 | - | 4.95 | 116,433 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 103,576 |
| Countries that End in O | 0 | - | 4.92 | 155,974 |
| Countries that End in R | 0 | - | 4.84 | 100,989 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,882 |
| Countries Ending in "IA" | 0 | - | 4.99 | 201,144 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 165,672 |
| Countries by Last Two Letters | 0 | - | 4.88 | 131,794 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 137,707 |
| Countries That End in Y | 0 | - | 4.91 | 183,035 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 191,991 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 148,180 |
| Countries that End in I | 0 | - | 4.92 | 118,239 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 177,724 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 93,226 |
| Countries That End in NIA | 0 | - | 4.92 | 106,923 |
| Countries That End in BIA | 0 | - | 4.92 | 144,976 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 162,655 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 115,981 |
| Countries That End in RIA | 0 | - | 4.92 | 123,650 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 107,270 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 218,567 |
| Divided Country Name Puzzle #2 | 0 | - | 4.98 | 128,934 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 120,936 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 86,803 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 72,140 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 49,771 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 99,789 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 121,415 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 47,153 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 49,441 |
| Countries that End in L | 0 | - | 4.94 | 153,202 |
| "Land" Countries | 0 | - | 4.98 | 301,556 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 199,304 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,318 |
| City to Country Quiz #1 | 0 | - | 4.96 | 151,558 |
| City to Country Quiz #3 | 0 | - | 4.87 | 105,611 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 76,331 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 222,378 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 194,612 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 123,419 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 158,551 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 218,363 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 148,727 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,413 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,444 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.94 | 85,283 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 60,417 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,395,620 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 367,783 |
| One Border Countries | 0 | - | 4.97 | 448,927 |
| Top Producing Countries | 0 | - | 4.63 | 114,682 |
| Country Codes Quiz | 0 | - | 4.45 | 81,107 |
| Countries on the Equator | 0 | - | 4.70 | 138,550 |
| Members of the Arab League | 0 | - | 4.78 | 74,932 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 68,523 |
| Separatist Movements | 0 | - | 4.44 | 44,850 |
| Countries with the Best Passports | 0 | - | 4.79 | 82,462 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,055 |
| Next Country Alphabetically | 0 | - | 4.70 | 84,312 |
| Westernmost Countries | 0 | - | 4.49 | 48,963 |
| Easternmost Countries | 0 | - | 4.74 | 62,018 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 38,849 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 105,610 |
| Indochina Countries | 0 | - | 4.70 | 65,029 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,174 |
| Countries With the Most Conflict Deaths | 0 | - | 4.63 | 94,795 |
| Highest Foreign Aid Recipients | 0 | - | 4.64 | 43,534 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 56,502 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 47,553 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 52,465 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 59,478 |
| Countries 206 to 242 | 0 | - | 4.74 | 32,977 |
| Most Populous Countries By Category | 0 | - | 4.56 | 81,478 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 44,511 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 60,214 |
| Flyover Countries | 0 | - | 4.64 | 49,687 |
| Top 50 Countries by Area - In Order | 0 | - | 4.70 | 71,616 |
| Countries with the Most Coral Reefs | 0 | - | 4.75 | 47,531 |
