| Landlocked Countries Quiz | 0 | - | 4.99 | 321,832 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,792,688 |
| Members of the Arab League | 0 | - | 4.85 | 60,995 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,295 |
| Himalayan Countries | 0 | - | 4.94 | 104,166 |
| Andean Countries | 0 | - | 4.91 | 57,694 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,631 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,048 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,417 |
| Coffee Producing Countries | 0 | - | 4.81 | 53,877 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,126 |
| Danube Countries | 0 | - | 4.97 | 56,544 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,574 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,764 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,921 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,153 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,912 |
| European Landlocked Countries | 0 | - | 4.99 | 115,017 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,146 |
| Countries with the Most Species | 0 | - | 4.99 | 89,182 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,197 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,611 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,942 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,113 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,319 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,620 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,006 |
| Countries in the Alps | 0 | - | 4.83 | 102,396 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,098 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,694 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,433 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,087 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,768 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,380 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,426 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,025 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,224 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,511 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,253 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,494 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,587 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,317 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,810 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,313 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,557 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,230 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,261 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,264 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,421 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,177 |
| Largest Countries By Category | 0 | - | 4.96 | 144,571 |
| Countries by Countries | 0 | - | 4.95 | 54,472 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,598 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,918 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,055,947 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,141 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 354,345 |
| Island Countries Quiz | 0 | - | 4.99 | 659,096 |
| Biggest Countries by Area | 0 | - | 5.00 | 930,664 |
| Northernmost Countries | 0 | - | 4.99 | 326,591 |
| Countries of South America | 0 | - | 5.00 | 790,404 |
| Countries of Oceania | 0 | - | 5.00 | 890,103 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,138,865 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,566,097 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,356 |
| Countries with Megacities | 0 | - | 4.99 | 196,454 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 170,900 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,573 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 94,831 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 63,525 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,107 |
| Countries by Official Language | 0 | - | 4.95 | 154,603 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 248,302 |
| Countries in their Native Language | 0 | - | 4.98 | 177,730 |
| Independence from Whom | 0 | - | 4.99 | 185,028 |
| Subdivisions by Country | 0 | - | 4.82 | 46,368 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,115 |
| Megadiverse Countries | 0 | - | 4.96 | 125,148 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,772 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,509 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,298 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,851 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,021 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,592 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,939 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,913 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,276 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,556 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,476 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,875 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,896 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,404 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,126 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 81,627 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 81,282 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,317 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,689 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,740 |
| Countries With the Most Languages | 0 | - | 4.91 | 173,013 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,148 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,393 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,061 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,733 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,259 |
| Widest Countries East to West | 0 | - | 4.93 | 119,176 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,779 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,778 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,555 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 85,232 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,636 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,988 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,397 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,002 |
| Countries with Double Letters | 0 | - | 4.96 | 67,908 |
| Countries that End in N | 0 | - | 4.93 | 132,302 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,232 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,648 |
| Countries with W | 0 | - | 4.97 | 122,434 |
| Countries with Z | 0 | - | 4.98 | 243,944 |
| Countries with Letters Missing | 0 | - | 4.97 | 155,297 |
| Countries That End in U | 0 | - | 4.94 | 107,383 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,103 |
| Countries that End in O | 0 | - | 4.92 | 146,783 |
| Countries that End in R | 0 | - | 4.86 | 96,354 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,139 |
| Countries Ending in "IA" | 0 | - | 4.99 | 170,915 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,484 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,038 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,064 |
| Countries That End in Y | 0 | - | 4.90 | 161,544 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,410 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,517 |
| Countries that End in I | 0 | - | 4.92 | 114,407 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,226 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,132 |
| Countries That End in NIA | 0 | - | 4.93 | 100,692 |
| Countries That End in BIA | 0 | - | 4.91 | 125,871 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,009 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,553 |
| Countries That End in RIA | 0 | - | 4.90 | 100,816 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,262 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,198 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,425 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,290 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,104 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,052 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,515 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,691 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,476 |
| Countries that End in L | 0 | - | 4.95 | 134,099 |
| "Land" Countries | 0 | - | 4.98 | 288,845 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,534 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,158 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,139 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,067 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,455 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,434 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 165,455 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,267 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 132,454 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,052 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,645 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,776 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,960 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,186 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,914 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,308,747 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 348,780 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,055,673 |
| One Border Countries | 0 | - | 4.98 | 408,948 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,634 |
| Top-Producing Countries | 0 | - | 4.71 | 99,825 |
| Country Codes Quiz | 0 | - | 4.45 | 77,086 |
| Countries on the Equator | 0 | - | 4.78 | 134,112 |
| Separatist Movements | 0 | - | 4.45 | 42,598 |
| Prime Meridian Countries | 0 | - | 4.63 | 51,850 |
| Next Country Alphabetically | 0 | - | 4.75 | 68,454 |
| Westernmost Countries | 0 | - | 4.50 | 47,450 |
| Easternmost Countries | 0 | - | 4.76 | 60,369 |
| Countries With the Most ISIS Fighters | 0 | - | 4.56 | 37,001 |
| Top 10 Most Famous Island Countries | 0 | - | 4.66 | 98,280 |
| Indochina Countries | 0 | - | 4.72 | 62,740 |
| Atlantic Ocean Island Countries | 0 | - | 4.55 | 63,032 |
| Countries With the Most Conflict Deaths | 0 | - | 4.63 | 90,747 |
| Highest Foreign Aid Recipients | 0 | - | 4.58 | 42,368 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 55,109 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.75 | 45,898 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.45 | 42,618 |
| Countries that are the Source of Refugees | 0 | - | 4.66 | 56,356 |
| Most Populous Countries By Category | 0 | - | 4.63 | 61,278 |
| Countries with the Most Turkic People | 0 | - | 4.80 | 41,942 |
| Countries Most-Mentioned by the New York Times | 0 | - | 4.70 | 44,900 |
| Flyover Countries | 0 | - | 4.71 | 42,354 |
| Top 50 Countries by Area - In Order | 0 | - | 4.76 | 66,571 |
| Countries with the Most Coral Reefs | 0 | - | 4.65 | 37,449 |
| Countries Without a U.S. Embassy | 0 | - | 4.58 | 42,141 |
| Most Recent Countries to Join the United Nations | 0 | - | 4.53 | 31,794 |
| Countries by Total Area of Bordering Countries | 0 | - | 4.79 | 49,396 |
| Countries with the Most Light Pollution | 0 | - | 4.53 | 44,212 |
| Present-Day Communist Nations | 0 | - | 4.49 | 43,229 |
