| Landlocked Countries Quiz | 0 | - | 4.99 | 323,634 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,916,387 |
| Members of the Arab League | 0 | - | 4.85 | 61,836 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,865 |
| Himalayan Countries | 0 | - | 4.94 | 104,728 |
| Andean Countries | 0 | - | 4.91 | 58,056 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,012 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,306 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,668 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,020 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,274 |
| Danube Countries | 0 | - | 4.97 | 56,624 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,664 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,831 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,160 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,328 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,496 |
| European Landlocked Countries | 0 | - | 4.99 | 115,486 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,307 |
| Countries with the Most Species | 0 | - | 4.99 | 89,521 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,325 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,669 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,995 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,243 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,398 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,673 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,110 |
| Countries in the Alps | 0 | - | 4.84 | 102,590 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,274 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,037 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,557 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,214 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,918 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,524 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,586 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,295 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,624 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,395 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,575 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,651 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,447 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,926 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,435 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,946 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,309 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,359 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,074 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,791 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,258 |
| Largest Countries By Category | 0 | - | 4.96 | 144,839 |
| Countries by Countries | 0 | - | 4.96 | 54,613 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,365 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,679 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,156 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,069,965 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 341,039 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 355,388 |
| Island Countries Quiz | 0 | - | 4.99 | 660,396 |
| Biggest Countries by Area | 0 | - | 5.00 | 932,768 |
| Northernmost Countries | 0 | - | 4.99 | 327,082 |
| Countries of South America | 0 | - | 5.00 | 792,885 |
| Countries of Oceania | 0 | - | 5.00 | 893,246 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,150,482 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,571,804 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,799 |
| Countries with Megacities | 0 | - | 4.99 | 197,087 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,430 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,870 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,282 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,840 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,785 |
| Countries by Official Language | 0 | - | 4.96 | 171,973 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,163 |
| Countries in their Native Language | 0 | - | 4.98 | 178,253 |
| Independence from Whom | 0 | - | 4.99 | 185,508 |
| Subdivisions by Country | 0 | - | 4.82 | 46,428 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,402 |
| Megadiverse Countries | 0 | - | 4.96 | 125,291 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,346 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,653 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,370 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,546 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,124 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,839 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,096 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,024 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,339 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,781 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,581 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,975 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,948 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,524 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,247 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 82,142 |
| World Map Quiz | 0 | - | 4.90 | 49,354 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,464 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,706 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,893 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,993 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,553 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,295 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,579 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,271 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,935 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,433 |
| Widest Countries East to West | 0 | - | 4.93 | 119,353 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,816 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,973 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,645 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 85,565 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,813 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,147 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,450 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.82 | 32,045 |
| Countries with Double Letters | 0 | - | 4.96 | 68,382 |
| Countries that End in N | 0 | - | 4.94 | 132,726 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,766 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 187,049 |
| Countries with W | 0 | - | 4.96 | 122,723 |
| Countries with Z | 0 | - | 4.98 | 244,430 |
| Countries with Letters Missing | 0 | - | 4.97 | 165,030 |
| Countries That End in U | 0 | - | 4.95 | 107,570 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,506 |
| Countries that End in O | 0 | - | 4.92 | 146,937 |
| Countries that End in R | 0 | - | 4.85 | 96,481 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,238 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,350 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,767 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,222 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,290 |
| Countries That End in Y | 0 | - | 4.90 | 161,638 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,987 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,756 |
| Countries that End in I | 0 | - | 4.92 | 114,498 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,539 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,269 |
| Countries That End in NIA | 0 | - | 4.93 | 100,839 |
| Countries That End in BIA | 0 | - | 4.91 | 126,082 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,244 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,750 |
| Countries That End in RIA | 0 | - | 4.90 | 100,958 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,443 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,727 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,682 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,571 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,378 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,229 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,723 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,830 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,726 |
| Countries that End in L | 0 | - | 4.95 | 134,275 |
| "Land" Countries | 0 | - | 4.98 | 289,201 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,830 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,179 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,279 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,180 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,608 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,866 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,255 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,469 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,052 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,872 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,856 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,888 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,064 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,308 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,042 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,311,211 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,582 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,063,556 |
| One Border Countries | 0 | - | 4.98 | 410,069 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,822 |
| Top-Producing Countries | 0 | - | 4.71 | 100,188 |
| Country Codes Quiz | 0 | - | 4.45 | 77,189 |
| Countries on the Equator | 0 | - | 4.78 | 134,279 |
| Separatist Movements | 0 | - | 4.45 | 42,671 |
| Prime Meridian Countries | 0 | - | 4.64 | 51,892 |
| Next Country Alphabetically | 0 | - | 4.76 | 68,543 |
| Westernmost Countries | 0 | - | 4.50 | 47,517 |
| Easternmost Countries | 0 | - | 4.76 | 60,431 |
| Countries With the Most ISIS Fighters | 0 | - | 4.56 | 37,071 |
| Top 10 Most Famous Island Countries | 0 | - | 4.70 | 98,493 |
| Indochina Countries | 0 | - | 4.72 | 62,816 |
| Atlantic Ocean Island Countries | 0 | - | 4.55 | 63,072 |
| Countries With the Most Conflict Deaths | 0 | - | 4.64 | 90,885 |
| Highest Foreign Aid Recipients | 0 | - | 4.58 | 42,402 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 55,146 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.76 | 45,951 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.45 | 42,713 |
| Countries that are the Source of Refugees | 0 | - | 4.66 | 56,458 |
| Most Populous Countries By Category | 0 | - | 4.64 | 61,414 |
| Countries with the Most Turkic People | 0 | - | 4.80 | 42,040 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.70 | 45,036 |
| Flyover Countries | 0 | - | 4.66 | 47,092 |
| Top 50 Countries by Area - In Order | 0 | - | 4.76 | 66,711 |
| Countries with the Most Coral Reefs | 0 | - | 4.66 | 37,505 |
| Countries Without a U.S. Embassy | 0 | - | 4.58 | 42,271 |
| Most Recent Countries to Join the United Nations | 0 | - | 4.53 | 31,832 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.79 | 49,493 |
| Countries with the Most Light Pollution | 0 | - | 4.54 | 44,287 |
