| Spanish-Speaking Countries | 0 | - | 4.95 | 375,150 |
| Countries by Official Language | 0 | - | 4.95 | 195,005 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,045 |
| Countries in their Native Language | 0 | - | 4.99 | 198,516 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,860 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,401 |
| Landlocked Countries | 0 | - | 4.99 | 420,849 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,487,106 |
| French-Speaking Countries | 0 | - | 4.85 | 270,599 |
| German-Speaking Countries | 0 | - | 4.91 | 145,610 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,163 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,924 |
| Himalayan Countries | 0 | - | 4.95 | 138,229 |
| Andean Countries | 0 | - | 4.95 | 84,334 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,563 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,448 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,184 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,608 |
| Danube Countries | 0 | - | 4.97 | 71,873 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,844 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,274 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,050 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,517 |
| European Landlocked Countries | 0 | - | 4.99 | 147,007 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,426 |
| Countries with the Most Species | 0 | - | 4.99 | 103,129 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,575 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,525 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,463 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,139 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,540 |
| Countries in the Alps | 0 | - | 4.87 | 118,011 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,071 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,796 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,563 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,484 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,355 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,854 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,508 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,375 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,098 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,726 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,577 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,434 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,098 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,372 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,395 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,618 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,197 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,717 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,861 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,366 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,761 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,134 |
| Largest Countries By Category | 0 | - | 4.97 | 157,982 |
| Countries by Countries | 0 | - | 4.96 | 63,054 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,511 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,228 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,522 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,847 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,549 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,992 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,679 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,563 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,472 |
| Island Countries | 0 | - | 4.99 | 710,572 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,336 |
| Northernmost Countries | 0 | - | 4.99 | 361,401 |
| Countries of South America | 0 | - | 5.00 | 925,547 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,659 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,091 |
| "Land" Countries | 0 | - | 4.98 | 336,865 |
| Top World Languages | 0 | - | 4.92 | 822,671 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,773 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,648 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,579 |
| Countries with Megacities | 0 | - | 4.99 | 263,707 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,416 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,303 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,693 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,346 |
| Independence from Whom | 0 | - | 4.99 | 211,796 |
| Subdivisions by Country | 0 | - | 4.86 | 50,379 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,193 |
| Megadiverse Countries | 0 | - | 4.96 | 134,912 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,280 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,863 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,068 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,960 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,503 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,275 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,961 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,586 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,048 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,414 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,808 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,122 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,898 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,268 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,430 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,812 |
| World Map Quiz | 0 | - | 4.81 | 64,926 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,581 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,228 |
| Countries by Founding Story | 0 | - | 4.95 | 77,254 |
| Countries by Road Signs | 0 | - | 4.98 | 53,865 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,854 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,137 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,857 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,872 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,766 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,899 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,200 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,377 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,475 |
| Widest Countries East to West | 0 | - | 4.92 | 129,547 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,421 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,224 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,076 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,662 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,448 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,731 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,329 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,773 |
| Countries with Double Letters | 0 | - | 4.97 | 95,823 |
| Countries that End in N | 0 | - | 4.95 | 170,761 |
| Countries with Five Letters | 0 | - | 4.96 | 281,835 |
| Countries with Six Letters | 0 | - | 4.94 | 213,167 |
| Countries with W | 0 | - | 4.97 | 160,052 |
| Countries with Z | 0 | - | 4.98 | 291,025 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,395 |
| Countries That End in U | 0 | - | 4.95 | 120,688 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,182 |
| Countries that End in O | 0 | - | 4.92 | 159,399 |
| Countries that End in R | 0 | - | 4.87 | 118,870 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,645 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,786 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,461 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,309 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,029 |
| Countries That End in Y | 0 | - | 4.91 | 185,789 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,654 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,685 |
| Countries that End in I | 0 | - | 4.94 | 135,007 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,828 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,729 |
| Countries That End in NIA | 0 | - | 4.92 | 109,673 |
| Countries That End in BIA | 0 | - | 4.93 | 149,053 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,945 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,271 |
| Countries That End in RIA | 0 | - | 4.93 | 126,706 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,864 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,247 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,493 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,890 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,463 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,482 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,881 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,396 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,378 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,337 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,101 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,809 |
| Countries that End in L | 0 | - | 4.94 | 156,715 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,021 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,226 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,939 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,862 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,904 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,507 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,472 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,859 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,389 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,994 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,759 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,035 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,657 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,783 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,008 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,262 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,465 |
| One Border Countries | 0 | - | 4.98 | 468,810 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,923 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,830,143 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,625,570 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,752 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,898 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,960 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,430 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,580 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,108 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,417 |
| Countries by National Anthem | 0 | - | 4.93 | 71,253 |
| NATO Countries | 0 | - | 4.98 | 280,637 |
| EU Countries Quiz | 0 | - | 4.99 | 274,509 |
| Recently Independent Countries | 0 | - | 4.98 | 159,292 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,848 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,151 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,577 |
