| Landlocked Countries Quiz | 0 | - | 4.99 | 318,600 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,548,771 |
| Top Olive Oil Producing Countries | 0 | - | 4.93 | 75,124 |
| Top Rice-Producing Countries | 0 | - | 4.94 | 79,557 |
| Top Chocolate Growing Countries | 0 | - | 4.88 | 43,109 |
| Countries on the Equator | 0 | - | 4.83 | 133,141 |
| Members of the Arab League | 0 | - | 4.82 | 59,693 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,421 |
| Himalayan Countries | 0 | - | 4.95 | 102,779 |
| Andean Countries | 0 | - | 4.90 | 57,119 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,969 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,647 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,999 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,625 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,820 |
| Danube Countries | 0 | - | 4.97 | 56,401 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,439 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,636 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,505 |
| Countries with the Worst Passports | 0 | - | 4.87 | 48,892 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,524 |
| European Landlocked Countries | 0 | - | 4.99 | 114,891 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,860 |
| Countries with the Most Species | 0 | - | 4.99 | 89,113 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,933 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,479 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,850 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,837 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,168 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,499 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,764 |
| Countries in the Alps | 0 | - | 4.83 | 101,974 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,780 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,012 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,196 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,825 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,464 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,150 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,152 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,827 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,105 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,245 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,993 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,372 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,462 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,067 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,572 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,066 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,854 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,011 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,022 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 193,454 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,662 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,011 |
| Largest Countries By Category | 0 | - | 4.96 | 144,062 |
| Countries by Countries | 0 | - | 4.96 | 54,189 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,028,722 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,850 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,438 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,512 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,982 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 352,418 |
| Island Countries Quiz | 0 | - | 4.99 | 639,490 |
| Biggest Countries by Area | 0 | - | 5.00 | 926,287 |
| Northernmost Countries | 0 | - | 4.99 | 325,640 |
| Countries of South America | 0 | - | 5.00 | 785,244 |
| Countries of Oceania | 0 | - | 5.00 | 884,149 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,116,521 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,555,451 |
| Countries with the Most Cultivated Land | 0 | - | 4.75 | 31,930 |
| Countries Producing the Most Bananas | 0 | - | 4.55 | 35,627 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,440 |
| Countries with Megacities | 0 | - | 4.99 | 195,167 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,794 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 97,022 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,930 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,901 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,592 |
| Countries by Official Language | 0 | - | 4.95 | 153,690 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 247,182 |
| Countries in their Native Language | 0 | - | 4.98 | 177,207 |
| Independence from Whom | 0 | - | 4.99 | 184,045 |
| Subdivisions by Country | 0 | - | 4.82 | 46,239 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 112,480 |
| Megadiverse Countries | 0 | - | 4.96 | 124,860 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,173 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,100 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,165 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,236 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,811 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,048 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,408 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,592 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,098 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 43,156 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,898 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,533 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,534 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,079 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,836 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,545 |
| World Map Quiz | 0 | - | 4.90 | 48,311 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,889 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,567 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,264 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,232 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,944 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,670 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,990 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,629 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,410 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,954 |
| Widest Countries East to West | 0 | - | 4.93 | 118,828 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,716 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,052 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,162 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,907 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,236 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,644 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,298 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,894 |
| Countries with Double Letters | 0 | - | 4.96 | 67,256 |
| Countries that End in N | 0 | - | 4.94 | 131,719 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 228,430 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,974 |
| Countries with W | 0 | - | 4.97 | 121,941 |
| Countries with Z | 0 | - | 4.98 | 243,122 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,833 |
| Countries That End in U | 0 | - | 4.94 | 107,153 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,560 |
| Countries that End in O | 0 | - | 4.92 | 146,539 |
| Countries that End in R | 0 | - | 4.86 | 96,217 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,958 |
| Countries Ending in "IA" | 0 | - | 4.99 | 170,240 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,042 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,723 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,657 |
| Countries That End in Y | 0 | - | 4.90 | 161,287 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,846 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,001 |
| Countries that End in I | 0 | - | 4.92 | 114,229 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,638 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,920 |
| Countries That End in NIA | 0 | - | 4.93 | 100,432 |
| Countries That End in BIA | 0 | - | 4.91 | 125,497 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,532 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,182 |
| Countries That End in RIA | 0 | - | 4.89 | 100,559 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,874 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 199,085 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,851 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 109,677 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,565 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,666 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,085 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,469 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,959 |
| Countries that End in L | 0 | - | 4.95 | 133,508 |
| "Land" Countries | 0 | - | 4.98 | 288,151 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,970 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,095 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,871 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,835 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,195 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,589 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 162,210 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,865 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 131,845 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 192,316 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,150 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,543 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,733 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,974 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,664 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,304,021 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,857 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,040,621 |
| One Border Countries | 0 | - | 4.98 | 407,128 |
| Countries With One Word and Three A's | 0 | - | 4.84 | 30,330 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,364,059 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,514 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,755 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,364 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,557 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,545 |
| Countries by National Anthem | 0 | - | 4.94 | 61,673 |
| NATO Countries Quiz | 0 | - | 4.98 | 224,030 |
| EU Countries Quiz | 0 | - | 4.99 | 226,451 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,835 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 77,237 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,737 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 224,641 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 216,311 |
| German-Speaking Countries | 0 | - | 4.88 | 117,221 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,409 |
| Countries with Wild Penguins | 0 | - | 4.93 | 89,763 |
| Solve the Secret Country #1 | 0 | - | 4.95 | 128,111 |
| Top Five Countries by Religion | 0 | - | 4.91 | 140,411 |
| Solve the Secret Country #2 | 0 | - | 4.91 | 86,560 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 81,166 |
