| Spanish-Speaking Countries | 0 | - | 4.95 | 375,900 |
| Countries by Official Language | 0 | - | 4.95 | 195,508 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,733 |
| Countries in their Native Language | 0 | - | 4.99 | 199,294 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,313 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,544 |
| French-Speaking Countries | 0 | - | 4.85 | 271,151 |
| German-Speaking Countries | 0 | - | 4.92 | 145,855 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,543 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,680,052 |
| Landlocked Countries | 0 | - | 4.99 | 423,214 |
| English Speaking Countries | 0 | - | 4.64 | 357,823 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,787,372 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,090 |
| Himalayan Countries | 0 | - | 4.94 | 139,272 |
| Andean Countries | 0 | - | 4.93 | 84,913 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,133 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,284 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,708 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,024 |
| Danube Countries | 0 | - | 4.97 | 72,152 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,216 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,561 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,570 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,081 |
| European Landlocked Countries | 0 | - | 4.99 | 147,299 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,866 |
| Countries with the Most Species | 0 | - | 4.99 | 103,357 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,999 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,653 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,773 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,634 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,384 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,803 |
| Countries in the Alps | 0 | - | 4.87 | 118,398 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,835 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,320 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,767 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,738 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,651 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,056 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,839 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,621 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,255 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,978 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,730 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,602 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,341 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,584 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,653 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,220 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,423 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,886 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,271 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,590 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,476 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,331 |
| Largest Countries By Category | 0 | - | 4.97 | 158,432 |
| Countries by Countries | 0 | - | 4.96 | 63,375 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,882 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,330 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,597 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,148 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,815 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,798 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,686 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,126 |
| Island Countries | 0 | - | 4.99 | 711,500 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,442 |
| Northernmost Countries | 0 | - | 4.99 | 362,593 |
| Countries of South America | 0 | - | 5.00 | 929,077 |
| Countries of Oceania | 0 | - | 5.00 | 1,059,063 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,881,159 |
| "Land" Countries | 0 | - | 4.98 | 337,689 |
| Top World Languages | 0 | - | 4.92 | 826,207 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,938 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,386,811 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,269 |
| Countries with Megacities | 0 | - | 4.99 | 265,448 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,099 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,670 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,336 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,739 |
| Independence from Whom | 0 | - | 4.99 | 212,381 |
| Subdivisions by Country | 0 | - | 4.87 | 50,495 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,946 |
| Megadiverse Countries | 0 | - | 4.96 | 135,108 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,425 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,307 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,144 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,299 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,667 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,643 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,428 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,717 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,188 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,955 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,970 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,283 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,024 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,446 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,559 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,601 |
| World Map Quiz | 0 | - | 4.81 | 65,274 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,919 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,468 |
| Countries by Founding Story | 0 | - | 4.95 | 77,471 |
| Countries by Road Signs | 0 | - | 4.98 | 54,136 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,350 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,435 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,144 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,646 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,042 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,149 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,414 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,508 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,666 |
| Widest Countries East to West | 0 | - | 4.92 | 129,773 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,483 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,713 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,397 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,858 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,727 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,991 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,422 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,825 |
| Countries with Double Letters | 0 | - | 4.96 | 96,524 |
| Countries that End in N | 0 | - | 4.95 | 171,424 |
| Countries with Five Letters | 0 | - | 4.96 | 282,979 |
| Countries with Six Letters | 0 | - | 4.94 | 213,848 |
| Countries with W | 0 | - | 4.96 | 160,543 |
| Countries with Z | 0 | - | 4.98 | 291,779 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,895 |
| Countries That End in U | 0 | - | 4.95 | 120,966 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,668 |
| Countries that End in O | 0 | - | 4.92 | 159,616 |
| Countries that End in R | 0 | - | 4.87 | 119,041 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,798 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,352 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,845 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,596 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,507 |
| Countries That End in Y | 0 | - | 4.91 | 185,955 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,087 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,005 |
| Countries that End in I | 0 | - | 4.94 | 135,178 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,269 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,892 |
| Countries That End in NIA | 0 | - | 4.92 | 109,863 |
| Countries That End in BIA | 0 | - | 4.93 | 149,326 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,248 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,544 |
| Countries That End in RIA | 0 | - | 4.93 | 126,896 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,140 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,930 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,872 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,303 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,853 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,649 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,142 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,472 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,642 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,515 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,432 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,130 |
| Countries that End in L | 0 | - | 4.94 | 156,936 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,367 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,293 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,107 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,036 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,081 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,967 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,830 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,246 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,973 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,631 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,985 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,150 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,739 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,064 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,775 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,212 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,459 |
| One Border Countries | 0 | - | 4.98 | 470,587 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,839,440 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,639,181 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,087 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,058 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,472 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,330 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,676 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,880 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,344 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,555 |
| Countries by National Anthem | 0 | - | 4.93 | 71,330 |
| NATO Countries | 0 | - | 4.98 | 282,151 |
| EU Countries Quiz | 0 | - | 4.99 | 276,292 |
| Recently Independent Countries | 0 | - | 4.98 | 159,623 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,947 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,996 |
