| Countries with Double Letters | 0 | - | 4.96 | 82,686 |
| Countries that End in N | 0 | - | 4.94 | 146,571 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 246,554 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 200,945 |
| Countries with W | 0 | - | 4.97 | 150,024 |
| Countries with Z | 0 | - | 4.98 | 276,473 |
| Countries with Letters Missing | 0 | - | 4.97 | 176,820 |
| Countries That End in U | 0 | - | 4.95 | 114,571 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 100,915 |
| Countries that End in O | 0 | - | 4.92 | 154,618 |
| Countries that End in R | 0 | - | 4.84 | 100,091 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,059 |
| Countries Ending in "IA" | 0 | - | 4.99 | 198,450 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 163,524 |
| Countries by Last Two Letters | 0 | - | 4.87 | 122,000 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 135,773 |
| Countries That End in Y | 0 | - | 4.91 | 182,253 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 189,475 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 127,850 |
| Countries that End in I | 0 | - | 4.92 | 117,538 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 158,602 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 92,312 |
| Countries That End in NIA | 0 | - | 4.92 | 105,231 |
| Countries That End in BIA | 0 | - | 4.92 | 142,889 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 161,426 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,903 |
| Countries That End in RIA | 0 | - | 4.89 | 105,604 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 106,061 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 215,673 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 127,466 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 119,335 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 85,183 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 71,324 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 48,751 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 98,263 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 120,176 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,382 |
| Countries with the Word "And" | 0 | - | 4.98 | 90,029 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 47,964 |
| Countries that End in L | 0 | - | 4.94 | 151,950 |
| "Land" Countries | 0 | - | 4.98 | 299,911 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 197,772 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,982 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 383,274 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,361,389 |
| Countries with Four Letters | 0 | - | 4.99 | 405,470 |
| Sahara Desert Countries | 0 | - | 4.97 | 145,775 |
| Himalayan Countries | 0 | - | 4.94 | 122,433 |
| Andean Countries | 0 | - | 4.93 | 68,820 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 56,774 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 113,229 |
| Coffee Producing Countries | 0 | - | 4.83 | 59,984 |
| Countries with Shrinking Populations | 0 | - | 4.92 | 59,383 |
| Danube Countries | 0 | - | 4.97 | 60,883 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 96,919 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,934 |
| Countries with the Best Passports | 0 | - | 4.82 | 80,846 |
| Countries with the Worst Passports | 0 | - | 4.90 | 70,774 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 138,360 |
| European Landlocked Countries | 0 | - | 4.99 | 141,060 |
| Partially Recognized Countries | 0 | - | 4.98 | 98,179 |
| Countries with the Most Species | 0 | - | 4.99 | 92,365 |
| Countries 197 to 205 | 0 | - | 4.87 | 63,562 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 46,710 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,807 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 52,609 |
| Countries that Use the Peso | 0 | - | 4.88 | 56,390 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,972 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 53,700 |
| Countries in the Alps | 0 | - | 4.86 | 110,509 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 90,782 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 97,911 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 75,426 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 83,795 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 110,673 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,984 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 95,057 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,890 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,000 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,841 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 72,755 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 51,289 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 39,117 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,190 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,873 |
| Countries with the Most Grassland | 0 | - | 4.93 | 73,579 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 109,118 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,852 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,778 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 222,314 |
| World Countries - Blind Typing | 0 | - | 5.00 | 95,238 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,146 |
| Largest Countries By Category | 0 | - | 4.97 | 151,481 |
| Countries by Countries | 0 | - | 4.96 | 58,499 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,409,875 |
| Country Flags with the Most White | 0 | - | 4.87 | 132,132 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,680 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,340 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,990 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,478,258 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 121,661 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 200,519 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 360,395 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 382,624 |
| Island Countries Quiz | 0 | - | 4.99 | 691,154 |
| Biggest Countries by Area | 0 | - | 5.00 | 990,383 |
| Northernmost Countries | 0 | - | 4.99 | 342,874 |
| Countries of South America | 0 | - | 5.00 | 863,772 |
| Countries of Oceania | 0 | - | 5.00 | 976,875 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,732,963 |
| Countries with J | 0 | - | 4.55 | 179,048 |
| Countries by Consonants | 0 | - | 4.43 | 76,186 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,260,046 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 159,142 |
| Countries with Megacities | 0 | - | 4.99 | 218,419 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 186,977 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 106,356 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 126,850 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 73,373 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 270,270 |
| Countries by Official Language | 0 | - | 4.95 | 184,253 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 282,328 |
| Countries in their Native Language | 0 | - | 4.98 | 189,013 |
| Independence from Whom | 0 | - | 4.99 | 200,050 |
| Subdivisions by Country | 0 | - | 4.86 | 48,551 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 123,878 |
| Megadiverse Countries | 0 | - | 4.96 | 130,549 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 122,311 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 121,927 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 49,349 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 155,588 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 59,527 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 86,918 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 149,360 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 80,517 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,441 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 67,676 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,907 |
| Countries Furthest from the United States | 0 | - | 4.95 | 86,012 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,264 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 72,207 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,693 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 98,379 |
| World Map Quiz | 0 | - | 4.88 | 57,818 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 135,442 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 86,835 |
| Countries by Founding Story | 0 | - | 4.94 | 72,934 |
| Countries by Road Signs | 0 | - | 4.98 | 49,711 |
| Southernmost Countries of the World | 0 | - | 4.99 | 218,767 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 98,843 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 116,692 |
| Countries With the Most Languages | 0 | - | 4.89 | 189,491 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 92,597 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 88,676 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 93,676 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,430 |
| Tallest Countries North to South | 0 | - | 4.85 | 115,697 |
| Widest Countries East to West | 0 | - | 4.92 | 124,843 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,216 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 180,310 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,500 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 90,360 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 125,533 |
| Countries with the Most Desert | 0 | - | 4.93 | 123,444 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,061 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,587 |
| City to Country Quiz #1 | 0 | - | 4.96 | 150,725 |
| City to Country Quiz #3 | 0 | - | 4.87 | 104,831 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 75,709 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 219,903 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 192,854 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 122,382 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 152,843 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 216,509 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 147,508 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,913 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,057 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,915 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,863 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,382,564 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 365,034 |
| One Border Countries | 0 | - | 4.98 | 445,423 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 97,132 |
| Most Similar Country Names | 0 | - | 4.15 | 45,247 |
| Longest Country Name A-Z | 0 | - | 4.34 | 40,007 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,635,198 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 82,039 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 257,702 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 116,065 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,921 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 88,344 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 55,052 |
| Countries by National Anthem | 0 | - | 4.92 | 69,939 |
| NATO Countries Quiz | 0 | - | 4.98 | 257,971 |
| EU Countries Quiz | 0 | - | 4.99 | 254,735 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 152,347 |
| French-Speaking Countries | 0 | - | 4.85 | 258,108 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 80,823 |
| Countries That Use the Euro | 0 | - | 4.93 | 76,153 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 267,449 |
