| Landlocked Countries Quiz | 0 | - | 4.99 | 323,305 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,886,195 |
| Members of the Arab League | 0 | - | 4.85 | 61,723 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,781 |
| Himalayan Countries | 0 | - | 4.94 | 104,647 |
| Andean Countries | 0 | - | 4.91 | 58,015 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,947 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,264 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,612 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,006 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,252 |
| Danube Countries | 0 | - | 4.97 | 56,611 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,641 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,807 |
| Countries with the Best Passports | 0 | - | 4.87 | 71,118 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,301 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,453 |
| European Landlocked Countries | 0 | - | 4.99 | 115,428 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,277 |
| Countries with the Most Species | 0 | - | 4.99 | 89,508 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,299 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,658 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,988 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,214 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,387 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,662 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,086 |
| Countries in the Alps | 0 | - | 4.84 | 102,559 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,238 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,946 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,525 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,186 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,889 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,490 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,563 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,106 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,287 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,599 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,380 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,551 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,637 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,421 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,902 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,410 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,869 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,293 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,338 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,847 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,722 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,246 |
| Largest Countries By Category | 0 | - | 4.96 | 144,785 |
| Countries by Countries | 0 | - | 4.96 | 54,592 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,656 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,116 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,066,890 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,893 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 355,145 |
| Island Countries Quiz | 0 | - | 4.99 | 660,110 |
| Biggest Countries by Area | 0 | - | 5.00 | 932,321 |
| Northernmost Countries | 0 | - | 4.99 | 326,944 |
| Countries of South America | 0 | - | 5.00 | 792,377 |
| Countries of Oceania | 0 | - | 5.00 | 892,632 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,148,080 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,570,671 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,723 |
| Countries with Megacities | 0 | - | 4.99 | 196,972 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,320 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,822 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,206 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,780 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,649 |
| Countries by Official Language | 0 | - | 4.96 | 170,949 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,028 |
| Countries in their Native Language | 0 | - | 4.98 | 178,198 |
| Independence from Whom | 0 | - | 4.99 | 185,405 |
| Subdivisions by Country | 0 | - | 4.82 | 46,416 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,342 |
| Megadiverse Countries | 0 | - | 4.96 | 125,265 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,274 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,629 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,359 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,502 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,099 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,795 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,063 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,004 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,320 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,745 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,562 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,959 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,934 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,503 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,229 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 82,029 |
| World Map Quiz | 0 | - | 4.90 | 49,291 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 81,428 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,593 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,837 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,931 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,438 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,253 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,523 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,219 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,890 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,391 |
| Widest Countries East to West | 0 | - | 4.93 | 119,311 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,804 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,936 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,623 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 85,365 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,777 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,106 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,439 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,034 |
| Countries with Double Letters | 0 | - | 4.96 | 68,250 |
| Countries that End in N | 0 | - | 4.93 | 132,590 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,613 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,917 |
| Countries with W | 0 | - | 4.97 | 122,633 |
| Countries with Z | 0 | - | 4.98 | 244,314 |
| Countries with Letters Missing | 0 | - | 4.97 | 161,886 |
| Countries That End in U | 0 | - | 4.95 | 107,509 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,385 |
| Countries that End in O | 0 | - | 4.92 | 146,880 |
| Countries that End in R | 0 | - | 4.85 | 96,449 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,212 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,253 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,715 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,185 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,248 |
| Countries That End in Y | 0 | - | 4.90 | 161,605 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,935 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,715 |
| Countries that End in I | 0 | - | 4.92 | 114,483 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,486 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,250 |
| Countries That End in NIA | 0 | - | 4.93 | 100,814 |
| Countries That End in BIA | 0 | - | 4.91 | 126,034 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,214 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,707 |
| Countries That End in RIA | 0 | - | 4.90 | 100,929 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,408 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,612 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,623 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,504 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,318 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,199 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,677 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,793 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,670 |
| Countries that End in L | 0 | - | 4.95 | 134,240 |
| "Land" Countries | 0 | - | 4.98 | 289,120 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,767 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,169 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,248 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,154 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,571 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,779 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,090 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,421 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 132,714 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,801 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,822 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,858 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,040 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,284 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,013 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,310,692 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,489 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,061,729 |
| One Border Countries | 0 | - | 4.98 | 409,877 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,778 |
| Top-Producing Countries | 0 | - | 4.71 | 100,159 |
| Country Codes Quiz | 0 | - | 4.45 | 77,169 |
| Countries on the Equator | 0 | - | 4.78 | 134,242 |
| Separatist Movements | 0 | - | 4.45 | 42,656 |
| Prime Meridian Countries | 0 | - | 4.64 | 51,886 |
| Next Country Alphabetically | 0 | - | 4.76 | 68,525 |
| Westernmost Countries | 0 | - | 4.50 | 47,497 |
| Easternmost Countries | 0 | - | 4.76 | 60,413 |
| Countries With the Most ISIS Fighters | 0 | - | 4.56 | 37,052 |
| Top 10 Most Famous Island Countries | 0 | - | 4.70 | 98,453 |
| Indochina Countries | 0 | - | 4.72 | 62,798 |
| Atlantic Ocean Island Countries | 0 | - | 4.55 | 63,065 |
| Countries With the Most Conflict Deaths | 0 | - | 4.64 | 90,858 |
| Highest Foreign Aid Recipients | 0 | - | 4.58 | 42,398 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 55,138 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.76 | 45,943 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.45 | 42,694 |
| Countries that are the Source of Refugees | 0 | - | 4.67 | 56,438 |
| Most Populous Countries By Category | 0 | - | 4.64 | 61,389 |
| Countries with the Most Turkic People | 0 | - | 4.80 | 42,015 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.70 | 45,012 |
| Flyover Countries | 0 | - | 4.66 | 46,936 |
| Top 50 Countries by Area - In Order | 0 | - | 4.76 | 66,670 |
| Countries with the Most Coral Reefs | 0 | - | 4.66 | 37,496 |
| Countries Without a U.S. Embassy | 0 | - | 4.58 | 42,238 |
| Most Recent Countries to Join the United Nations | 0 | - | 4.53 | 31,824 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.79 | 49,466 |
| Countries with the Most Light Pollution | 0 | - | 4.54 | 44,265 |
