| Landlocked Countries Quiz | 0 | - | 4.99 | 390,018 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,878,991 |
| Sahara Desert Countries | 0 | - | 4.97 | 149,217 |
| Himalayan Countries | 0 | - | 4.94 | 125,368 |
| Andean Countries | 0 | - | 4.93 | 70,576 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 58,116 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 115,574 |
| Coffee Producing Countries | 0 | - | 4.83 | 61,471 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 60,594 |
| Danube Countries | 0 | - | 4.97 | 61,686 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 98,041 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 82,710 |
| Countries with the Worst Passports | 0 | - | 4.92 | 75,375 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 141,049 |
| European Landlocked Countries | 0 | - | 4.99 | 142,087 |
| Partially Recognized Countries | 0 | - | 4.98 | 99,858 |
| Countries with the Most Species | 0 | - | 4.99 | 93,158 |
| Countries 197 to 205 | 0 | - | 4.88 | 64,792 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 47,082 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,167 |
| Countries that Use the Peso | 0 | - | 4.89 | 57,033 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 70,556 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 54,459 |
| Countries in the Alps | 0 | - | 4.86 | 112,016 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 91,596 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 99,473 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,052 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 84,518 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 111,698 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 92,636 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,160 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 50,497 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,479 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 59,517 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 51,731 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,530 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,819 |
| Arctic Ocean Countries | 0 | - | 4.94 | 76,496 |
| Countries with the Most Grassland | 0 | - | 4.93 | 74,316 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 110,895 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 65,448 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,373 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 40,599 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 226,251 |
| World Countries - Blind Typing | 0 | - | 5.00 | 97,554 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,707 |
| Largest Countries By Category | 0 | - | 4.97 | 152,496 |
| Countries by Countries | 0 | - | 4.96 | 59,188 |
| Country Flags with the Most White | 0 | - | 4.85 | 133,253 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,954 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 84,813 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,449,824 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,525,462 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 362,667 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 386,531 |
| Island Countries Quiz | 0 | - | 4.99 | 695,233 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,005,972 |
| Northernmost Countries | 0 | - | 4.99 | 344,947 |
| Countries of South America | 0 | - | 5.00 | 874,410 |
| Countries of Oceania | 0 | - | 5.00 | 989,950 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,755,635 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 162,488 |
| Countries with Megacities | 0 | - | 4.99 | 222,074 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 189,411 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,591 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 128,757 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 74,992 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 300,419 |
| Countries by Official Language | 0 | - | 4.95 | 186,018 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 284,534 |
| Countries in their Native Language | 0 | - | 4.98 | 190,362 |
| Independence from Whom | 0 | - | 4.99 | 202,433 |
| Subdivisions by Country | 0 | - | 4.85 | 48,933 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 125,591 |
| Megadiverse Countries | 0 | - | 4.97 | 131,242 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 123,930 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,360 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 122,669 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 73,490 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,571 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 156,862 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,223 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 88,609 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,137 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,057 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,632 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 69,587 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,293 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,467 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,954 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 72,667 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,183 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,284,884 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 100,545 |
| World Map Quiz | 0 | - | 4.87 | 59,081 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 87,769 |
| Southernmost Countries of the World | 0 | - | 4.99 | 220,279 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 99,923 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 117,724 |
| Countries With the Most Languages | 0 | - | 4.89 | 191,833 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 97,228 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 89,550 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 94,731 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,967 |
| Tallest Countries North to South | 0 | - | 4.84 | 116,588 |
| Widest Countries East to West | 0 | - | 4.92 | 125,673 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,418 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 181,506 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,961 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 91,108 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 126,221 |
| Countries with the Most Desert | 0 | - | 4.93 | 124,090 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,275 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,814 |
| Countries with Double Letters | 0 | - | 4.97 | 85,633 |
| Countries that End in N | 0 | - | 4.94 | 149,134 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 249,593 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 203,315 |
| Countries with W | 0 | - | 4.97 | 152,236 |
| Countries with Z | 0 | - | 4.98 | 279,223 |
| Countries with Letters Missing | 0 | - | 4.97 | 178,924 |
| Countries That End in U | 0 | - | 4.95 | 116,032 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 102,952 |
| Countries that End in O | 0 | - | 4.92 | 155,653 |
| Countries that End in R | 0 | - | 4.83 | 100,768 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,690 |
| Countries Ending in "IA" | 0 | - | 4.99 | 200,337 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 165,264 |
| Countries by Last Two Letters | 0 | - | 4.88 | 131,498 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 137,394 |
| Countries That End in Y | 0 | - | 4.91 | 182,869 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 191,548 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 147,529 |
| Countries that End in I | 0 | - | 4.92 | 118,104 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 175,196 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 93,066 |
| Countries That End in NIA | 0 | - | 4.92 | 106,322 |
| Countries That End in BIA | 0 | - | 4.92 | 144,331 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 162,367 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 115,720 |
| Countries That End in RIA | 0 | - | 4.89 | 116,459 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 107,003 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 217,946 |
| Divided Country Name Puzzle #2 | 0 | - | 4.98 | 128,627 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 120,580 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 86,454 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 71,968 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 49,546 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 99,168 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 121,096 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,986 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 49,095 |
| Countries that End in L | 0 | - | 4.94 | 152,960 |
| "Land" Countries | 0 | - | 4.98 | 301,212 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 198,936 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,231 |
| City to Country Quiz #1 | 0 | - | 4.96 | 151,413 |
| City to Country Quiz #3 | 0 | - | 4.87 | 105,472 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 76,192 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 221,739 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 194,327 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 123,255 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 158,287 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 218,043 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 148,244 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,309 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,350 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.94 | 85,191 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 60,306 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,392,929 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 367,203 |
| One Border Countries | 0 | - | 4.98 | 448,206 |
| Top Producing Countries | 0 | - | 4.64 | 114,443 |
| Country Codes Quiz | 0 | - | 4.45 | 81,010 |
| Countries on the Equator | 0 | - | 4.70 | 138,418 |
| Members of the Arab League | 0 | - | 4.78 | 74,883 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 68,424 |
| Separatist Movements | 0 | - | 4.44 | 44,785 |
| Countries with the Best Passports | 0 | - | 4.79 | 82,258 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,004 |
| Next Country Alphabetically | 0 | - | 4.70 | 84,237 |
| Westernmost Countries | 0 | - | 4.49 | 48,922 |
| Easternmost Countries | 0 | - | 4.74 | 61,966 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 38,789 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 105,012 |
| Indochina Countries | 0 | - | 4.70 | 64,953 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,144 |
| Countries With the Most Conflict Deaths | 0 | - | 4.68 | 94,701 |
| Highest Foreign Aid Recipients | 0 | - | 4.64 | 43,501 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 56,472 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 47,498 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 52,362 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 59,391 |
| Countries 206 to 242 | 0 | - | 4.74 | 32,863 |
| Most Populous Countries By Category | 0 | - | 4.55 | 64,346 |
| Countries with the Most Turkic People | 0 | - | 4.74 | 44,433 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 60,114 |
| Flyover Countries | 0 | - | 4.64 | 49,623 |
| Top 50 Countries by Area - In Order | 0 | - | 4.70 | 71,419 |
| Countries with the Most Coral Reefs | 0 | - | 4.75 | 47,457 |
