| Spanish-Speaking Countries | 0 | - | 4.95 | 375,864 |
| Countries by Official Language | 0 | - | 4.95 | 195,483 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,693 |
| Countries in their Native Language | 0 | - | 4.99 | 199,257 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,289 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,536 |
| Landlocked Countries | 0 | - | 4.99 | 423,080 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,670,081 |
| French-Speaking Countries | 0 | - | 4.85 | 271,114 |
| German-Speaking Countries | 0 | - | 4.92 | 145,847 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,524 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,046 |
| Himalayan Countries | 0 | - | 4.94 | 139,211 |
| Andean Countries | 0 | - | 4.93 | 84,886 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,103 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,244 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,682 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,997 |
| Danube Countries | 0 | - | 4.97 | 72,140 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,201 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,549 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,543 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,054 |
| European Landlocked Countries | 0 | - | 4.99 | 147,285 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,847 |
| Countries with the Most Species | 0 | - | 4.99 | 103,352 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,972 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,649 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,769 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,625 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,372 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,792 |
| Countries in the Alps | 0 | - | 4.87 | 118,373 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,785 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,301 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,760 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,725 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,645 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,045 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,822 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,611 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,251 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,959 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,725 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,597 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,332 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,570 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,641 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,180 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,409 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,795 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,257 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,532 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,443 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,315 |
| Largest Countries By Category | 0 | - | 4.97 | 158,411 |
| Countries by Countries | 0 | - | 4.96 | 63,365 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,859 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,328 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,592 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,131 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,796 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,786,428 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,794 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,580 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,034 |
| Island Countries | 0 | - | 4.99 | 711,443 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,259 |
| Northernmost Countries | 0 | - | 4.99 | 362,524 |
| Countries of South America | 0 | - | 5.00 | 928,912 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,838 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,880,777 |
| "Land" Countries | 0 | - | 4.98 | 337,644 |
| Top World Languages | 0 | - | 4.92 | 826,015 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,931 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,386,446 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,230 |
| Countries with Megacities | 0 | - | 4.99 | 265,355 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,050 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,649 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,299 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,721 |
| Independence from Whom | 0 | - | 4.99 | 212,346 |
| Subdivisions by Country | 0 | - | 4.87 | 50,485 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,921 |
| Megadiverse Countries | 0 | - | 4.96 | 135,101 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,420 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,298 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,142 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,277 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,664 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,622 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,418 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,711 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,184 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,921 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,955 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,273 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,015 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,430 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,551 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,561 |
| World Map Quiz | 0 | - | 4.81 | 65,260 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,861 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,459 |
| Countries by Founding Story | 0 | - | 4.95 | 77,460 |
| Countries by Road Signs | 0 | - | 4.98 | 54,121 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,322 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,417 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,122 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,600 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,018 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,130 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,401 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,497 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,655 |
| Widest Countries East to West | 0 | - | 4.92 | 129,757 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,481 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,533 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,392 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,846 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,707 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,978 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,416 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,822 |
| Countries with Double Letters | 0 | - | 4.96 | 96,493 |
| Countries that End in N | 0 | - | 4.95 | 171,384 |
| Countries with Five Letters | 0 | - | 4.96 | 282,939 |
| Countries with Six Letters | 0 | - | 4.94 | 213,820 |
| Countries with W | 0 | - | 4.96 | 160,517 |
| Countries with Z | 0 | - | 4.98 | 291,740 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,870 |
| Countries That End in U | 0 | - | 4.95 | 120,947 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,644 |
| Countries that End in O | 0 | - | 4.92 | 159,601 |
| Countries that End in R | 0 | - | 4.87 | 119,029 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,794 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,329 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,829 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,584 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,496 |
| Countries That End in Y | 0 | - | 4.91 | 185,948 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,066 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,993 |
| Countries that End in I | 0 | - | 4.94 | 135,172 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,251 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,885 |
| Countries That End in NIA | 0 | - | 4.92 | 109,861 |
| Countries That End in BIA | 0 | - | 4.93 | 149,311 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,222 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,528 |
| Countries That End in RIA | 0 | - | 4.93 | 126,884 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,127 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,908 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,854 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,284 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,839 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,642 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,119 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,471 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,633 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,498 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,421 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,110 |
| Countries that End in L | 0 | - | 4.94 | 156,927 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,301 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,291 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,099 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,030 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,070 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,950 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,812 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,236 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,956 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,615 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,971 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,141 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,737 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,033 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,731 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,008 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,413 |
| One Border Countries | 0 | - | 4.98 | 470,497 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,079 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,838,938 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,638,521 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,043 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,446 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,317 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,667 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,863 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,323 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,549 |
| Countries by National Anthem | 0 | - | 4.93 | 71,325 |
| NATO Countries | 0 | - | 4.98 | 282,067 |
| EU Countries Quiz | 0 | - | 4.99 | 276,192 |
| Recently Independent Countries | 0 | - | 4.98 | 159,602 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,943 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,950 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,871 |
