| Landlocked Countries Quiz | 0 | - | 4.99 | 316,439 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,373,646 |
| Countries on the Equator | 0 | - | 4.82 | 131,674 |
| Members of the Arab League | 0 | - | 4.81 | 58,783 |
| Sahara Desert Countries | 0 | - | 4.97 | 124,877 |
| Himalayan Countries | 0 | - | 4.95 | 102,171 |
| Andean Countries | 0 | - | 4.90 | 56,744 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,564 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,486 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,781 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,446 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,634 |
| Danube Countries | 0 | - | 4.97 | 56,317 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,337 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,553 |
| Countries with the Best Passports | 0 | - | 4.86 | 70,174 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,680 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,062 |
| European Landlocked Countries | 0 | - | 4.99 | 114,785 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,629 |
| Countries with the Most Species | 0 | - | 4.99 | 89,054 |
| Countries 197 to 205 | 0 | - | 4.87 | 55,691 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,400 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,770 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,677 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,054 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,411 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,596 |
| Countries in the Alps | 0 | - | 4.82 | 101,497 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,504 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,549 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,058 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,617 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,246 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,785 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 88,962 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,691 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,018 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,067 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,831 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,300 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,368 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,854 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,423 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,886 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,343 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,889 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,879 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,026 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,042 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,892 |
| Largest Countries By Category | 0 | - | 4.96 | 143,714 |
| Countries by Countries | 0 | - | 4.95 | 53,960 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,007,876 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,320 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 77,178 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,139 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,041 |
| Island Countries Quiz | 0 | - | 4.99 | 637,449 |
| Biggest Countries by Area | 0 | - | 5.00 | 923,286 |
| Northernmost Countries | 0 | - | 4.99 | 324,998 |
| Countries of South America | 0 | - | 5.00 | 781,984 |
| Countries of Oceania | 0 | - | 5.00 | 879,719 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,100,489 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,547,554 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 123,896 |
| Countries with Megacities | 0 | - | 4.99 | 194,334 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,092 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,672 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,440 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,539 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,612 |
| Countries by Official Language | 0 | - | 4.95 | 153,252 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,146 |
| Countries in their Native Language | 0 | - | 4.98 | 176,703 |
| Independence from Whom | 0 | - | 4.99 | 182,610 |
| Subdivisions by Country | 0 | - | 4.82 | 46,131 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,656 |
| Megadiverse Countries | 0 | - | 4.96 | 124,617 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,722 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,898 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,077 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 129,631 |
| Most Recently-Settled Countries | 0 | - | 4.91 | 48,548 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,430 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,208 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,419 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,922 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,707 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,730 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,263 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,448 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,828 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,654 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 79,682 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,622 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,115 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 89,980 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 106,900 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,227 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,468 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,746 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,301 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,188 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,709 |
| Widest Countries East to West | 0 | - | 4.93 | 118,372 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,660 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,743 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,047 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,673 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,520 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,406 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,226 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,804 |
| Countries with Double Letters | 0 | - | 4.96 | 66,353 |
| Countries that End in N | 0 | - | 4.94 | 130,748 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,236 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,061 |
| Countries with W | 0 | - | 4.97 | 121,062 |
| Countries with Z | 0 | - | 4.98 | 241,690 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,239 |
| Countries That End in U | 0 | - | 4.94 | 106,540 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.96 | 87,938 |
| Countries that End in O | 0 | - | 4.92 | 146,187 |
| Countries that End in R | 0 | - | 4.85 | 95,968 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,751 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,275 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,702 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,452 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,372 |
| Countries That End in Y | 0 | - | 4.90 | 160,716 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,436 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,647 |
| Countries that End in I | 0 | - | 4.92 | 114,080 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,231 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,724 |
| Countries That End in NIA | 0 | - | 4.93 | 100,221 |
| Countries That End in BIA | 0 | - | 4.91 | 125,200 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,243 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 108,919 |
| Countries That End in RIA | 0 | - | 4.89 | 100,377 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,621 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,335 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,465 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 109,258 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,167 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,399 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,774 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,290 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,613 |
| Countries that End in L | 0 | - | 4.95 | 133,226 |
| "Land" Countries | 0 | - | 4.98 | 287,637 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,245 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,052 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,619 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,395 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,007 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 205,935 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 156,791 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,567 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,453 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 191,793 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 139,838 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 65,373 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,396 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,814 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,310 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,300,371 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,191 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,029,525 |
| One Border Countries | 0 | - | 4.98 | 406,068 |
| Countries With One Word and Three A's | 0 | - | 4.83 | 30,118 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,349,324 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,220 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,131 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,097 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,409 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,298 |
| Countries by National Anthem | 0 | - | 4.94 | 61,586 |
| NATO Countries Quiz | 0 | - | 4.98 | 223,022 |
| EU Countries Quiz | 0 | - | 4.99 | 225,675 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,197 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,083 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,313 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 223,719 |
| Countries with Nuclear Weapons | 0 | - | 4.88 | 215,473 |
| German-Speaking Countries | 0 | - | 4.87 | 117,079 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,216 |
| Countries with Wild Penguins | 0 | - | 4.93 | 89,559 |
| Solve the Secret Country #1 | 0 | - | 4.95 | 127,206 |
| Top Five Countries by Religion | 0 | - | 4.90 | 139,330 |
| Solve the Secret Country #2 | 0 | - | 4.91 | 85,788 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 80,911 |
| Olympic Host Countries | 0 | - | 4.98 | 160,126 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 97,561 |
| Anagram Chain - Countries | 0 | - | 4.98 | 95,222 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 90,681 |
| Countries with the Most Elite Universities | 0 | - | 4.93 | 98,052 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 228,475 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 94,647 |
