| Spanish-Speaking Countries | 0 | - | 4.94 | 338,343 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 117,883 |
| Countries by Official Language | 0 | - | 4.95 | 153,375 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,468 |
| Countries in their Native Language | 0 | - | 4.98 | 176,884 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,826 |
| German-Speaking Countries | 0 | - | 4.87 | 117,109 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,419,716 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 316,965 |
| English Speaking Countries | 0 | - | 4.72 | 337,323 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,013,164 |
| Countries on the Equator | 0 | - | 4.82 | 132,170 |
| Members of the Arab League | 0 | - | 4.81 | 59,030 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,012 |
| Himalayan Countries | 0 | - | 4.95 | 102,316 |
| Andean Countries | 0 | - | 4.90 | 56,834 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,673 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,532 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,838 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,506 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,685 |
| Danube Countries | 0 | - | 4.97 | 56,337 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,368 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,580 |
| Countries with the Best Passports | 0 | - | 4.86 | 70,242 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,734 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,335 |
| European Landlocked Countries | 0 | - | 4.99 | 114,812 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,710 |
| Countries with the Most Species | 0 | - | 4.99 | 89,077 |
| Countries 197 to 205 | 0 | - | 4.87 | 55,760 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,421 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,791 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,726 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,091 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,433 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,636 |
| Countries in the Alps | 0 | - | 4.82 | 101,747 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,564 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,684 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,093 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,664 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,308 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,819 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 88,999 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,722 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,049 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,102 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,872 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,317 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,387 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,913 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,457 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,925 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,480 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,919 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,916 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,439 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,218 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,920 |
| Largest Countries By Category | 0 | - | 4.96 | 143,805 |
| Countries by Countries | 0 | - | 4.96 | 54,016 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,574 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,342 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,255 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,411 |
| Island Countries Quiz | 0 | - | 4.99 | 637,916 |
| Biggest Countries by Area | 0 | - | 5.00 | 924,022 |
| Northernmost Countries | 0 | - | 4.99 | 325,180 |
| Countries of South America | 0 | - | 5.00 | 782,875 |
| Countries of Oceania | 0 | - | 5.00 | 880,975 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,104,629 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,549,533 |
| Top World Languages | 0 | - | 4.91 | 698,178 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.70 | 104,156 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,016 |
| Countries with Megacities | 0 | - | 4.99 | 194,540 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,295 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,770 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,568 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,635 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,825 |
| Independence from Whom | 0 | - | 4.99 | 182,778 |
| Subdivisions by Country | 0 | - | 4.82 | 46,161 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 111,760 |
| Megadiverse Countries | 0 | - | 4.96 | 124,684 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 105,960 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,107 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 129,990 |
| Most Recently-Settled Countries | 0 | - | 4.91 | 48,578 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,501 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,263 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,465 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,954 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,762 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,771 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,317 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,460 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,881 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,703 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 79,892 |
| World Map Quiz | 0 | - | 4.90 | 48,036 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,687 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,217 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,042 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 106,994 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,396 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,514 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,817 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,392 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,249 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,800 |
| Widest Countries East to West | 0 | - | 4.93 | 118,655 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,668 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,806 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,075 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,725 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,593 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,458 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,238 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,842 |
| Countries with Double Letters | 0 | - | 4.96 | 66,506 |
| Countries that End in N | 0 | - | 4.94 | 130,868 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,391 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,255 |
| Countries with W | 0 | - | 4.97 | 121,174 |
| Countries with Z | 0 | - | 4.98 | 241,854 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,329 |
| Countries That End in U | 0 | - | 4.94 | 106,618 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.96 | 88,031 |
| Countries that End in O | 0 | - | 4.92 | 146,242 |
| Countries that End in R | 0 | - | 4.85 | 96,017 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,788 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,387 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,778 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,510 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,436 |
| Countries That End in Y | 0 | - | 4.90 | 160,743 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,528 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,729 |
| Countries that End in I | 0 | - | 4.92 | 114,116 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,305 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,759 |
| Countries That End in NIA | 0 | - | 4.93 | 100,278 |
| Countries That End in BIA | 0 | - | 4.91 | 125,265 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,299 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 108,974 |
| Countries That End in RIA | 0 | - | 4.89 | 100,422 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,680 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,494 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,545 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 109,341 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,265 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,471 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,837 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,321 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,696 |
| Countries that End in L | 0 | - | 4.95 | 133,282 |
| "Land" Countries | 0 | - | 4.98 | 287,761 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,674 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,056 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,655 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,437 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,053 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,070 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 156,870 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,621 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,534 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 191,875 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 139,890 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 65,391 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,625 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,858 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,347 |
| Places in their Native Language #1 | 0 | - | 4.87 | 208,790 |
| Places in their Native Language #2 | 0 | - | 4.88 | 112,262 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,301,261 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,392 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,032,596 |
| One Border Countries | 0 | - | 4.98 | 406,369 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,352,993 |
| French-Speaking Countries Quiz | 0 | - | 4.76 | 211,126 |
| Countries With the Most Italian Speakers | 0 | - | 4.51 | 50,192 |
| Countries With One Word and Three A's | 0 | - | 4.83 | 30,158 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,288 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,277 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,170 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,456 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,359 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,093 |
| Countries by National Anthem | 0 | - | 4.94 | 61,608 |
| NATO Countries Quiz | 0 | - | 4.98 | 223,329 |
| EU Countries Quiz | 0 | - | 4.99 | 225,865 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,277 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,133 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,437 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 223,922 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 215,669 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,269 |
| Countries with Wild Penguins | 0 | - | 4.93 | 89,623 |
