| Landlocked Countries Quiz | 0 | - | 4.99 | 324,989 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,030,578 |
| Members of the Arab League | 0 | - | 4.86 | 62,538 |
| Sahara Desert Countries | 0 | - | 4.97 | 127,345 |
| Himalayan Countries | 0 | - | 4.94 | 105,183 |
| Andean Countries | 0 | - | 4.91 | 58,383 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,332 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,508 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,857 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,140 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,372 |
| Danube Countries | 0 | - | 4.97 | 56,707 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,746 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,891 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,366 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,461 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,651 |
| European Landlocked Countries | 0 | - | 4.99 | 115,572 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,463 |
| Countries with the Most Species | 0 | - | 4.99 | 89,548 |
| Countries 197 to 205 | 0 | - | 4.89 | 56,438 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,711 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,030 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,358 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,450 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,736 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,222 |
| Countries in the Alps | 0 | - | 4.84 | 102,767 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,428 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,372 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,647 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,353 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,059 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,635 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,721 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,206 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,351 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,724 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,488 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,640 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,707 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,579 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,044 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,549 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 98,277 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,399 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,451 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,832 |
| World Countries - Blind Typing | 0 | - | 5.00 | 73,117 |
| Countries in Their Own Alphabet | 0 | - | 4.94 | 42,333 |
| Largest Countries By Category | 0 | - | 4.96 | 145,058 |
| Countries by Countries | 0 | - | 4.96 | 54,727 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,751 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,342 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,082,156 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 341,508 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 356,129 |
| Island Countries Quiz | 0 | - | 4.99 | 661,394 |
| Biggest Countries by Area | 0 | - | 5.00 | 934,710 |
| Northernmost Countries | 0 | - | 4.99 | 327,851 |
| Countries of South America | 0 | - | 5.00 | 795,336 |
| Countries of Oceania | 0 | - | 5.00 | 895,908 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,161,866 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,577,289 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,557 |
| Countries with Megacities | 0 | - | 4.99 | 197,872 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 172,088 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,263 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 95,915 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,242 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,613 |
| Countries by Official Language | 0 | - | 4.96 | 173,031 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,643 |
| Countries in their Native Language | 0 | - | 4.98 | 178,555 |
| Independence from Whom | 0 | - | 4.99 | 185,945 |
| Subdivisions by Country | 0 | - | 4.82 | 46,491 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,667 |
| Megadiverse Countries | 0 | - | 4.96 | 125,425 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,639 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,766 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,419 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,732 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,211 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,092 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,284 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,106 |
| Countries in Relation to Cities #1 | 0 | - | 4.91 | 41,376 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,944 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,657 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,081 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,993 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,612 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,344 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 82,638 |
| World Map Quiz | 0 | - | 4.90 | 49,654 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,616 |
| Southernmost Countries of the World | 0 | - | 4.99 | 207,117 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,094 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 108,232 |
| Countries With the Most Languages | 0 | - | 4.91 | 174,063 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,449 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,746 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,467 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 54,091 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,575 |
| Widest Countries East to West | 0 | - | 4.93 | 119,503 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,857 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,193 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,725 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 85,695 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 119,484 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,309 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,500 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.82 | 32,094 |
| Countries with Double Letters | 0 | - | 4.96 | 68,891 |
| Countries that End in N | 0 | - | 4.93 | 133,162 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 230,272 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 187,787 |
| Countries with W | 0 | - | 4.97 | 123,045 |
| Countries with Z | 0 | - | 4.98 | 244,897 |
| Countries with Letters Missing | 0 | - | 4.97 | 167,329 |
| Countries That End in U | 0 | - | 4.95 | 107,789 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,848 |
| Countries that End in O | 0 | - | 4.92 | 147,079 |
| Countries that End in R | 0 | - | 4.85 | 96,571 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,347 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,680 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,988 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,359 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,442 |
| Countries That End in Y | 0 | - | 4.90 | 161,714 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 161,244 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,952 |
| Countries that End in I | 0 | - | 4.92 | 114,570 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,796 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,398 |
| Countries That End in NIA | 0 | - | 4.93 | 100,969 |
| Countries That End in BIA | 0 | - | 4.91 | 126,249 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,428 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,899 |
| Countries That End in RIA | 0 | - | 4.90 | 101,080 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,599 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 201,226 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,936 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,850 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,643 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 92,388 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,883 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,933 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,944 |
| Countries that End in L | 0 | - | 4.95 | 134,412 |
| "Land" Countries | 0 | - | 4.98 | 289,486 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 189,082 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,205 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,434 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,298 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,736 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 208,255 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,824 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,627 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,285 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 194,195 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,037 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,964 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,153 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,444 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,161 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,313,366 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 350,015 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,070,484 |
| One Border Countries | 0 | - | 4.98 | 410,698 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,954 |
| Top-Producing Countries | 0 | - | 4.71 | 100,256 |
| Country Codes Quiz | 0 | - | 4.45 | 77,272 |
| Countries on the Equator | 0 | - | 4.78 | 134,390 |
| Separatist Movements | 0 | - | 4.45 | 42,741 |
| Prime Meridian Countries | 0 | - | 4.64 | 51,934 |
| Next Country Alphabetically | 0 | - | 4.76 | 68,610 |
| Westernmost Countries | 0 | - | 4.50 | 47,559 |
| Easternmost Countries | 0 | - | 4.76 | 60,472 |
| Countries With the Most ISIS Fighters | 0 | - | 4.57 | 37,130 |
| Top 10 Most Famous Island Countries | 0 | - | 4.70 | 98,666 |
| Indochina Countries | 0 | - | 4.72 | 62,879 |
| Atlantic Ocean Island Countries | 0 | - | 4.55 | 63,110 |
| Countries With the Most Conflict Deaths | 0 | - | 4.64 | 90,986 |
| Highest Foreign Aid Recipients | 0 | - | 4.71 | 42,441 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 55,198 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.76 | 46,001 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.45 | 42,792 |
| Countries that are the Source of Refugees | 0 | - | 4.66 | 56,539 |
| Most Populous Countries By Category | 0 | - | 4.64 | 61,503 |
| Countries with the Most Turkic People | 0 | - | 4.80 | 42,125 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.70 | 45,126 |
| Flyover Countries | 0 | - | 4.65 | 47,331 |
| Top 50 Countries by Area - In Order | 0 | - | 4.76 | 66,847 |
| Countries with the Most Coral Reefs | 0 | - | 4.71 | 37,551 |
| Countries Without a U.S. Embassy | 0 | - | 4.58 | 42,393 |
| Most Recent Countries to Join the United Nations | 0 | - | 4.53 | 31,856 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.79 | 49,577 |
| Countries with the Most Light Pollution | 0 | - | 4.54 | 44,367 |
