| "Land" Countries | 0 | - | 4.98 | 335,216 |
| Countries with Double Letters | 0 | - | 4.97 | 94,620 |
| Countries that End in N | 0 | - | 4.95 | 168,738 |
| Countries with Five Letters | 0 | - | 4.96 | 273,727 |
| Countries with Six Letters | 0 | - | 4.94 | 211,895 |
| Countries with W | 0 | - | 4.97 | 159,180 |
| Countries with Z | 0 | - | 4.98 | 289,283 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,379 |
| Countries That End in U | 0 | - | 4.95 | 120,213 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,402 |
| Countries that End in O | 0 | - | 4.92 | 159,038 |
| Countries that End in R | 0 | - | 4.87 | 118,613 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,391 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,974 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,886 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,916 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,498 |
| Countries That End in Y | 0 | - | 4.90 | 185,523 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,976 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,198 |
| Countries that End in I | 0 | - | 4.94 | 134,734 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,807 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,460 |
| Countries That End in NIA | 0 | - | 4.92 | 109,368 |
| Countries That End in BIA | 0 | - | 4.93 | 148,657 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,517 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,870 |
| Countries That End in RIA | 0 | - | 4.93 | 126,400 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,446 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,252 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,974 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,295 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,928 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,208 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,527 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,052 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,932 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,091 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,630 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,326 |
| Countries that End in L | 0 | - | 4.94 | 156,379 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,258 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,107 |
| Landlocked Countries | 0 | - | 4.99 | 417,286 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,214,484 |
| Countries with Four Letters | 0 | - | 4.99 | 420,770 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,226 |
| Himalayan Countries | 0 | - | 4.95 | 136,769 |
| Andean Countries | 0 | - | 4.95 | 83,608 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,869 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,168 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,536 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,128 |
| Danube Countries | 0 | - | 4.97 | 71,488 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,310 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,906 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,304 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,302 |
| European Landlocked Countries | 0 | - | 4.99 | 146,197 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,880 |
| Countries with the Most Species | 0 | - | 4.99 | 102,406 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,011 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,357 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,536 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,205 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,857 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,236 |
| Countries in the Alps | 0 | - | 4.86 | 117,436 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,966 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,048 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,305 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,809 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,906 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,324 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,075 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,046 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,862 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,395 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,398 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,242 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,790 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,055 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,066 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,842 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,943 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,470 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,311 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,387 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,756 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,878 |
| Largest Countries By Category | 0 | - | 4.97 | 157,358 |
| Countries by Countries | 0 | - | 4.96 | 62,675 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,961 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,109 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,423 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,459 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,149 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,745,463 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,341 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 215,353 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,579 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,117 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,242 |
| Island Countries | 0 | - | 4.99 | 709,103 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,175 |
| Northernmost Countries | 0 | - | 4.99 | 359,730 |
| Countries of South America | 0 | - | 5.00 | 920,567 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,169 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,991 |
| Countries with J | 0 | - | 4.54 | 184,692 |
| Countries by Consonants | 0 | - | 4.42 | 78,441 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,092 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,498 |
| Countries with Megacities | 0 | - | 4.99 | 249,440 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,349 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,673 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,681 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,643 |
| Countries by Official Language | 0 | - | 4.95 | 194,252 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,073 |
| Countries in their Native Language | 0 | - | 4.99 | 197,850 |
| Independence from Whom | 0 | - | 4.99 | 210,978 |
| Subdivisions by Country | 0 | - | 4.86 | 50,224 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,451 |
| Megadiverse Countries | 0 | - | 4.96 | 134,606 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,015 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,108 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,663 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,965 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,515 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,276 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,708 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,600 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,409 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,822 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,477 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,623 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,717 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,685 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,893 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,251 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,754 |
| World Map Quiz | 0 | - | 4.81 | 64,232 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,731 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,777 |
| Countries by Founding Story | 0 | - | 4.95 | 76,936 |
| Countries by Road Signs | 0 | - | 4.98 | 53,487 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,189 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,743 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,478 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,897 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,352 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,524 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,690 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,185 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,156 |
| Widest Countries East to West | 0 | - | 4.92 | 129,226 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,342 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,741 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,947 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,007 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,047 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,422 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,160 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,691 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,749 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,608 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,675 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,443 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,898 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,431 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,892 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,347 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,099 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,892 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,315 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,544 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,556 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,952 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,114 |
| One Border Countries | 0 | - | 4.98 | 466,802 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,346 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,167 |
| Most Similar Country Names | 0 | - | 4.16 | 46,419 |
| Longest Country Name A-Z | 0 | - | 4.33 | 41,959 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,816,228 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,607,279 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,360 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,052 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,437 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,136 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,178 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,723 |
| Countries by National Anthem | 0 | - | 4.92 | 71,144 |
| NATO Countries | 0 | - | 4.98 | 278,487 |
| EU Countries Quiz | 0 | - | 4.99 | 272,048 |
| Recently Independent Countries | 0 | - | 4.98 | 158,468 |
| French-Speaking Countries | 0 | - | 4.85 | 269,923 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,624 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,141 |
