| Countries with Double Letters | 0 | - | 4.96 | 81,701 |
| Countries that End in N | 0 | - | 4.93 | 145,612 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 245,531 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 200,122 |
| Countries with W | 0 | - | 4.97 | 132,997 |
| Countries with Z | 0 | - | 4.98 | 275,425 |
| Countries with Letters Missing | 0 | - | 4.97 | 176,202 |
| Countries That End in U | 0 | - | 4.95 | 113,971 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 99,982 |
| Countries that End in O | 0 | - | 4.92 | 154,170 |
| Countries that End in R | 0 | - | 4.84 | 99,815 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,828 |
| Countries Ending in "IA" | 0 | - | 4.99 | 197,923 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 163,191 |
| Countries by Last Two Letters | 0 | - | 4.87 | 121,760 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 135,513 |
| Countries That End in Y | 0 | - | 4.91 | 182,050 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 189,136 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 127,375 |
| Countries that End in I | 0 | - | 4.92 | 117,377 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 158,251 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 92,159 |
| Countries That End in NIA | 0 | - | 4.92 | 105,064 |
| Countries That End in BIA | 0 | - | 4.91 | 142,664 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 161,178 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,671 |
| Countries That End in RIA | 0 | - | 4.90 | 105,407 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 105,820 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 215,117 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 127,135 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 118,967 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 84,790 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 71,119 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 48,529 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 97,617 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,902 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,202 |
| Countries with the Word "And" | 0 | - | 4.98 | 89,745 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 47,633 |
| Countries that End in L | 0 | - | 4.94 | 151,705 |
| "Land" Countries | 0 | - | 4.98 | 299,523 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 197,431 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,908 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 381,322 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,220,720 |
| Countries with Four Letters | 0 | - | 4.99 | 405,023 |
| Sahara Desert Countries | 0 | - | 4.97 | 144,966 |
| Himalayan Countries | 0 | - | 4.95 | 121,655 |
| Andean Countries | 0 | - | 4.92 | 68,355 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 56,431 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 112,605 |
| Coffee Producing Countries | 0 | - | 4.83 | 59,625 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 59,059 |
| Danube Countries | 0 | - | 4.97 | 60,705 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 96,654 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,744 |
| Countries with the Best Passports | 0 | - | 4.81 | 80,156 |
| Countries with the Worst Passports | 0 | - | 4.92 | 64,244 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 137,644 |
| European Landlocked Countries | 0 | - | 4.99 | 140,868 |
| Partially Recognized Countries | 0 | - | 4.98 | 97,835 |
| Countries with the Most Species | 0 | - | 4.99 | 92,250 |
| Countries 197 to 205 | 0 | - | 4.87 | 63,257 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 46,631 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,727 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 52,457 |
| Countries that Use the Peso | 0 | - | 4.88 | 56,185 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,854 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 53,525 |
| Countries in the Alps | 0 | - | 4.86 | 110,223 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 90,554 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 97,487 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 75,279 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 83,570 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 110,443 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,819 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,841 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,728 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,883 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,662 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 72,638 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 51,172 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 39,030 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,041 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,712 |
| Countries with the Most Grassland | 0 | - | 4.93 | 73,387 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 108,654 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,703 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,612 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 221,371 |
| World Countries - Blind Typing | 0 | - | 5.00 | 94,536 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,005 |
| Largest Countries By Category | 0 | - | 4.97 | 151,121 |
| Countries by Countries | 0 | - | 4.96 | 58,319 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,398,698 |
| Country Flags with the Most White | 0 | - | 4.87 | 131,896 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,602 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,283 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,757 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,464,936 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 121,456 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 199,771 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 359,700 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 381,708 |
| Island Countries Quiz | 0 | - | 4.99 | 690,022 |
| Biggest Countries by Area | 0 | - | 5.00 | 988,289 |
| Northernmost Countries | 0 | - | 4.99 | 342,358 |
| Countries of South America | 0 | - | 5.00 | 860,665 |
| Countries of Oceania | 0 | - | 5.00 | 973,177 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,726,472 |
| Countries with J | 0 | - | 4.55 | 178,770 |
| Countries by Consonants | 0 | - | 4.43 | 76,066 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,253,195 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 158,410 |
| Countries with Megacities | 0 | - | 4.99 | 217,517 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 186,421 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 106,084 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 126,401 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 73,000 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 269,387 |
| Countries by Official Language | 0 | - | 4.95 | 183,805 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 281,668 |
| Countries in their Native Language | 0 | - | 4.98 | 188,610 |
| Independence from Whom | 0 | - | 4.99 | 199,582 |
| Subdivisions by Country | 0 | - | 4.86 | 48,487 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 123,543 |
| Megadiverse Countries | 0 | - | 4.96 | 130,385 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 121,886 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 120,951 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 49,291 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 155,308 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 59,409 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 86,438 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,926 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 80,347 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,387 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 67,058 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,807 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,892 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,138 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 72,098 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,556 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 97,889 |
| World Map Quiz | 0 | - | 4.88 | 57,526 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 134,532 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 86,620 |
| Countries by Founding Story | 0 | - | 4.94 | 72,763 |
| Southernmost Countries of the World | 0 | - | 4.99 | 218,400 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 98,611 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 116,484 |
| Countries With the Most Languages | 0 | - | 4.89 | 188,971 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 92,466 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 88,475 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 93,492 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,293 |
| Tallest Countries North to South | 0 | - | 4.85 | 115,513 |
| Widest Countries East to West | 0 | - | 4.92 | 124,637 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,180 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 177,132 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,413 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 90,198 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 125,311 |
| Countries with the Most Desert | 0 | - | 4.93 | 123,240 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,013 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,531 |
| City to Country Quiz #1 | 0 | - | 4.96 | 150,233 |
| City to Country Quiz #3 | 0 | - | 4.87 | 104,689 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 75,549 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 219,073 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 192,296 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 122,030 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 140,786 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 215,828 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.97 | 147,110 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,701 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.82 | 105,949 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,835 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,738 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,379,930 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 364,441 |
| One Border Countries | 0 | - | 4.98 | 444,505 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 97,002 |
| Most Similar Country Names | 0 | - | 4.15 | 45,184 |
| Longest Country Name A-Z | 0 | - | 4.36 | 39,902 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,626,930 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 81,757 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 257,136 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 115,784 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,574 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 88,004 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 54,863 |
| Countries by National Anthem | 0 | - | 4.92 | 69,857 |
| NATO Countries Quiz | 0 | - | 4.98 | 257,400 |
| EU Countries Quiz | 0 | - | 4.99 | 254,221 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 152,114 |
| French-Speaking Countries | 0 | - | 4.85 | 257,247 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 80,690 |
| Countries That Use the Euro | 0 | - | 4.92 | 75,661 |
| Countries with the Most Military Troops | 0 | - | 4.96 | 266,606 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 248,249 |
