| Countries with Double Letters | 0 | - | 4.96 | 67,078 |
| Countries that End in N | 0 | - | 4.94 | 131,527 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,996 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,784 |
| Countries with W | 0 | - | 4.97 | 121,793 |
| Countries with Z | 0 | - | 4.98 | 242,653 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,709 |
| Countries That End in U | 0 | - | 4.94 | 107,028 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,428 |
| Countries that End in O | 0 | - | 4.92 | 146,455 |
| Countries that End in R | 0 | - | 4.86 | 96,151 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,910 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,698 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,949 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,644 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,574 |
| Countries That End in Y | 0 | - | 4.90 | 160,842 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,751 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,913 |
| Countries that End in I | 0 | - | 4.92 | 114,196 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,533 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,856 |
| Countries That End in NIA | 0 | - | 4.93 | 100,374 |
| Countries That End in BIA | 0 | - | 4.91 | 125,432 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,459 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,112 |
| Countries That End in RIA | 0 | - | 4.89 | 100,514 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,806 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,894 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,740 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 109,536 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,461 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,609 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,990 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,429 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,875 |
| Countries that End in L | 0 | - | 4.95 | 133,430 |
| "Land" Countries | 0 | - | 4.98 | 288,022 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,883 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,083 |
| Countries With One Word and Three A's | 0 | - | 4.84 | 30,267 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 317,946 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,502,521 |
| Countries with Four Letters | 0 | - | 4.99 | 374,515 |
| Countries on the Equator | 0 | - | 4.82 | 132,804 |
| Members of the Arab League | 0 | - | 4.82 | 59,425 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,254 |
| Himalayan Countries | 0 | - | 4.95 | 102,600 |
| Andean Countries | 0 | - | 4.90 | 57,011 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,855 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,612 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,937 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,576 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,777 |
| Danube Countries | 0 | - | 4.97 | 56,373 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,423 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,616 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,406 |
| Countries with the Worst Passports | 0 | - | 4.87 | 48,824 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,441 |
| European Landlocked Countries | 0 | - | 4.99 | 114,861 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,805 |
| Countries with the Most Species | 0 | - | 4.99 | 89,097 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,870 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,456 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,828 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,794 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,144 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,474 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,720 |
| Countries in the Alps | 0 | - | 4.82 | 101,888 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,706 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,887 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,155 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,773 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,410 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,103 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,092 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,785 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,084 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,202 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,944 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,345 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,429 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,017 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,535 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,017 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,715 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,981 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,989 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 193,035 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,514 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,987 |
| Largest Countries By Category | 0 | - | 4.96 | 143,971 |
| Countries by Countries | 0 | - | 4.96 | 54,134 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,023,241 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,756 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,400 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,425 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 115,980 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 178,208 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,772 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 352,071 |
| Island Countries Quiz | 0 | - | 4.99 | 639,073 |
| Biggest Countries by Area | 0 | - | 5.00 | 925,487 |
| Northernmost Countries | 0 | - | 4.99 | 325,460 |
| Countries of South America | 0 | - | 5.00 | 784,417 |
| Countries of Oceania | 0 | - | 5.00 | 883,016 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,112,772 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,553,570 |
| Countries with J | 0 | - | 4.59 | 169,036 |
| Add A Letter - Make a Country | 0 | - | 4.79 | 67,695 |
| Countries by Consonants | 0 | - | 4.44 | 72,449 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,302 |
| Countries with Megacities | 0 | - | 4.99 | 194,969 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,631 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,949 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,816 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,796 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,304 |
| Countries by Official Language | 0 | - | 4.95 | 153,596 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,973 |
| Countries in their Native Language | 0 | - | 4.98 | 177,098 |
| Independence from Whom | 0 | - | 4.99 | 183,829 |
| Subdivisions by Country | 0 | - | 4.82 | 46,204 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 112,289 |
| Megadiverse Countries | 0 | - | 4.96 | 124,812 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,075 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,055 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,145 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,159 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,767 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,919 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,354 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,536 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,997 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 43,044 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,855 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,397 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,505 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,971 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,784 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,313 |
| World Map Quiz | 0 | - | 4.90 | 48,204 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 110,874 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,818 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,446 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,182 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,134 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,750 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,606 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,929 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,539 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,356 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,892 |
| Widest Countries East to West | 0 | - | 4.93 | 118,776 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,692 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,969 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,130 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,847 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,121 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,575 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,275 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,872 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,815 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,792 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,144 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,363 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 157,560 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,744 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,693 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 192,114 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,031 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,451 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,700 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,929 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,612 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,302,979 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,696 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,037,757 |
| One Border Countries | 0 | - | 4.98 | 406,846 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 92,494 |
| Most Similar Country Names | 0 | - | 4.15 | 43,453 |
| Longest Country Name A-Z | 0 | - | 4.36 | 36,581 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,360,474 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,418 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,588 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,287 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,520 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,470 |
| Countries by National Anthem | 0 | - | 4.94 | 61,649 |
| NATO Countries Quiz | 0 | - | 4.98 | 223,861 |
| EU Countries Quiz | 0 | - | 4.99 | 226,289 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,714 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,208 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,648 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 224,484 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 216,173 |
| German-Speaking Countries | 0 | - | 4.88 | 117,190 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,359 |
