| Countries with Double Letters | 0 | - | 4.96 | 82,434 |
| Countries that End in N | 0 | - | 4.93 | 146,352 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 246,320 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 200,739 |
| Countries with W | 0 | - | 4.97 | 149,644 |
| Countries with Z | 0 | - | 4.98 | 276,256 |
| Countries with Letters Missing | 0 | - | 4.97 | 176,642 |
| Countries That End in U | 0 | - | 4.95 | 114,442 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 100,743 |
| Countries that End in O | 0 | - | 4.91 | 154,530 |
| Countries that End in R | 0 | - | 4.84 | 100,028 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,007 |
| Countries Ending in "IA" | 0 | - | 4.99 | 198,313 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 163,461 |
| Countries by Last Two Letters | 0 | - | 4.87 | 121,941 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 135,708 |
| Countries That End in Y | 0 | - | 4.91 | 182,195 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 189,393 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 127,631 |
| Countries that End in I | 0 | - | 4.92 | 117,507 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 158,525 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 92,279 |
| Countries That End in NIA | 0 | - | 4.92 | 105,198 |
| Countries That End in BIA | 0 | - | 4.92 | 142,844 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 161,364 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,861 |
| Countries That End in RIA | 0 | - | 4.89 | 105,564 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 106,006 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 215,535 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 127,394 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 119,239 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 85,079 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 71,271 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 48,699 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 98,204 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 120,107 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,334 |
| Countries with the Word "And" | 0 | - | 4.98 | 89,965 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 47,888 |
| Countries that End in L | 0 | - | 4.94 | 151,894 |
| "Land" Countries | 0 | - | 4.98 | 299,807 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 197,703 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,959 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 382,744 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,328,623 |
| Countries with Four Letters | 0 | - | 4.99 | 405,377 |
| Sahara Desert Countries | 0 | - | 4.97 | 145,541 |
| Himalayan Countries | 0 | - | 4.94 | 122,201 |
| Andean Countries | 0 | - | 4.93 | 68,654 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 56,645 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 113,046 |
| Coffee Producing Countries | 0 | - | 4.83 | 59,878 |
| Countries with Shrinking Populations | 0 | - | 4.92 | 59,275 |
| Danube Countries | 0 | - | 4.97 | 60,825 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 96,849 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,876 |
| Countries with the Best Passports | 0 | - | 4.81 | 80,522 |
| Countries with the Worst Passports | 0 | - | 4.92 | 66,671 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 138,189 |
| European Landlocked Countries | 0 | - | 4.99 | 140,999 |
| Partially Recognized Countries | 0 | - | 4.98 | 98,059 |
| Countries with the Most Species | 0 | - | 4.99 | 92,329 |
| Countries 197 to 205 | 0 | - | 4.87 | 63,450 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 46,684 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,781 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 52,570 |
| Countries that Use the Peso | 0 | - | 4.88 | 56,343 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,939 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 53,631 |
| Countries in the Alps | 0 | - | 4.86 | 110,423 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 90,704 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 97,793 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 75,381 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 83,730 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 110,623 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,945 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,996 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,836 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,958 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,779 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 72,721 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 51,254 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 39,092 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,154 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,833 |
| Countries with the Most Grassland | 0 | - | 4.93 | 73,514 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 108,982 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,792 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,726 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 222,066 |
| World Countries - Blind Typing | 0 | - | 5.00 | 95,096 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,093 |
| Largest Countries By Category | 0 | - | 4.97 | 151,364 |
| Countries by Countries | 0 | - | 4.96 | 58,456 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,406,869 |
| Country Flags with the Most White | 0 | - | 4.87 | 132,078 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,662 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,327 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,941 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,475,551 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 121,614 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 200,333 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 360,236 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 382,387 |
| Island Countries Quiz | 0 | - | 4.99 | 690,867 |
| Biggest Countries by Area | 0 | - | 5.00 | 989,923 |
| Northernmost Countries | 0 | - | 4.99 | 342,767 |
| Countries of South America | 0 | - | 5.00 | 863,197 |
| Countries of Oceania | 0 | - | 5.00 | 976,001 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,731,587 |
| Countries with J | 0 | - | 4.55 | 178,993 |
| Countries by Consonants | 0 | - | 4.43 | 76,159 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,258,309 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 158,973 |
| Countries with Megacities | 0 | - | 4.99 | 218,203 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 186,827 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 106,289 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 126,729 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 73,281 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 270,031 |
| Countries by Official Language | 0 | - | 4.95 | 184,154 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 282,181 |
| Countries in their Native Language | 0 | - | 4.98 | 188,933 |
| Independence from Whom | 0 | - | 4.99 | 199,943 |
| Subdivisions by Country | 0 | - | 4.86 | 48,537 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 123,814 |
| Megadiverse Countries | 0 | - | 4.96 | 130,516 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 122,218 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 121,834 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 49,339 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 155,496 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 59,496 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 86,855 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 149,332 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 80,456 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,427 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 67,555 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,890 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,991 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,231 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 72,188 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,653 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 98,268 |
| World Map Quiz | 0 | - | 4.88 | 57,739 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 135,216 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 86,782 |
| Countries by Founding Story | 0 | - | 4.94 | 72,900 |
| Countries by Road Signs | 0 | - | 4.98 | 49,637 |
| Southernmost Countries of the World | 0 | - | 4.99 | 218,687 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 98,804 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 116,642 |
| Countries With the Most Languages | 0 | - | 4.89 | 189,395 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 92,574 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 88,643 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 93,650 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,402 |
| Tallest Countries North to South | 0 | - | 4.85 | 115,656 |
| Widest Countries East to West | 0 | - | 4.92 | 124,804 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,208 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 180,082 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,481 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 90,321 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 125,483 |
| Countries with the Most Desert | 0 | - | 4.93 | 123,397 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,043 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,570 |
| City to Country Quiz #1 | 0 | - | 4.96 | 150,652 |
| City to Country Quiz #3 | 0 | - | 4.87 | 104,796 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 75,674 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 219,362 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 192,508 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 122,145 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 140,944 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 216,057 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.97 | 147,249 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,757 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.82 | 106,018 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,890 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,835 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,381,974 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 364,914 |
| One Border Countries | 0 | - | 4.98 | 445,235 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 97,101 |
| Most Similar Country Names | 0 | - | 4.15 | 45,233 |
| Longest Country Name A-Z | 0 | - | 4.34 | 39,976 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,633,239 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 81,927 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 257,489 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 115,993 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,771 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 88,220 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 55,012 |
| Countries by National Anthem | 0 | - | 4.92 | 69,924 |
| NATO Countries Quiz | 0 | - | 4.98 | 257,838 |
| EU Countries Quiz | 0 | - | 4.99 | 254,611 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 152,293 |
| French-Speaking Countries | 0 | - | 4.85 | 257,886 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 80,799 |
| Countries That Use the Euro | 0 | - | 4.93 | 76,048 |
| Countries with the Most Military Troops | 0 | - | 4.96 | 267,261 |
