| Countries of the World Quiz | 0 | - | 5.00 | 47,650,510 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 159,046 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 86,749 |
| Countries with Four Letters | 0 | - | 4.99 | 423,787 |
| Landlocked Countries | 0 | - | 4.99 | 422,840 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,784,754 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,354 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,900 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,013 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,859 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 217,692 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,945 |
| Himalayan Countries | 0 | - | 4.95 | 139,109 |
| Andean Countries | 0 | - | 4.93 | 84,843 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,065 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,173 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,645 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,960 |
| Danube Countries | 0 | - | 4.97 | 72,118 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,163 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,522 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,498 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,001 |
| European Landlocked Countries | 0 | - | 4.99 | 147,260 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,804 |
| Countries with the Most Species | 0 | - | 4.99 | 103,329 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,933 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,644 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,760 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,608 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,344 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,768 |
| Countries in the Alps | 0 | - | 4.87 | 118,338 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,661 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,242 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,735 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,695 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,614 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,023 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,783 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,585 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,235 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,940 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,703 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,581 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,312 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,554 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,619 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,114 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,384 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,628 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,226 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,402 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,389 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,299 |
| Largest Countries By Category | 0 | - | 4.97 | 158,367 |
| Countries by Countries | 0 | - | 4.96 | 63,339 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,805 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,316 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,589 |
| All Countries by Population With a Map | 0 | - | 4.99 | 109,883 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,109 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,766 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,374 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,778 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,857 |
| Island Countries | 0 | - | 4.99 | 711,352 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,960 |
| Northernmost Countries | 0 | - | 4.99 | 362,382 |
| Countries of South America | 0 | - | 5.00 | 928,575 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,418 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,879,957 |
| "Land" Countries | 0 | - | 4.98 | 337,588 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,385,802 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,894 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,424 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,149 |
| Countries with Megacities | 0 | - | 4.99 | 265,181 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,968 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,612 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,233 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,681 |
| Countries by Official Language | 0 | - | 4.95 | 195,436 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,622 |
| Countries in their Native Language | 0 | - | 4.99 | 199,208 |
| Independence from Whom | 0 | - | 4.99 | 212,298 |
| Subdivisions by Country | 0 | - | 4.87 | 50,474 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,880 |
| Megadiverse Countries | 0 | - | 4.96 | 135,083 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,236 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,400 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,279 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,136 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,243 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,649 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,585 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,404 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,701 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,176 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,870 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,938 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,256 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,008 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,406 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,538 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,478 |
| World Map Quiz | 0 | - | 4.81 | 65,215 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,729 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,436 |
| Countries by Founding Story | 0 | - | 4.95 | 77,443 |
| Countries by Road Signs | 0 | - | 4.98 | 54,098 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,272 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,377 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,091 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,490 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,987 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,093 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,377 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,489 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,633 |
| Widest Countries East to West | 0 | - | 4.92 | 129,732 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,476 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,485 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,183 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,824 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,677 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,951 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,404 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,816 |
| Countries with Double Letters | 0 | - | 4.96 | 96,431 |
| Countries that End in N | 0 | - | 4.95 | 171,313 |
| Countries with Five Letters | 0 | - | 4.96 | 282,830 |
| Countries with Six Letters | 0 | - | 4.94 | 213,766 |
| Countries with W | 0 | - | 4.96 | 160,469 |
| Countries with Z | 0 | - | 4.98 | 291,676 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,833 |
| Countries That End in U | 0 | - | 4.95 | 120,921 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,599 |
| Countries that End in O | 0 | - | 4.92 | 159,577 |
| Countries that End in R | 0 | - | 4.87 | 119,012 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,769 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,276 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,787 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,558 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,470 |
| Countries That End in Y | 0 | - | 4.91 | 185,930 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,033 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,956 |
| Countries that End in I | 0 | - | 4.94 | 135,152 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,223 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,868 |
| Countries That End in NIA | 0 | - | 4.92 | 109,846 |
| Countries That End in BIA | 0 | - | 4.93 | 149,287 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,197 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,499 |
| Countries That End in RIA | 0 | - | 4.93 | 126,870 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,088 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,843 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,818 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,251 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,801 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,631 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,095 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,465 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,607 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,476 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,391 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,075 |
| Countries that End in L | 0 | - | 4.94 | 156,906 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,178 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,286 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,081 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,009 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,052 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,913 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,778 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,211 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,921 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,586 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,945 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,131 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,731 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,927 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,589 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,318 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,838,037 |
| One Border Countries | 0 | - | 4.98 | 470,360 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,637,256 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,908 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,520 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,026 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,393 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,279 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,643 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,838 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,296 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,028 |
| Countries by National Anthem | 0 | - | 4.93 | 71,317 |
| NATO Countries | 0 | - | 4.98 | 281,943 |
| EU Countries Quiz | 0 | - | 4.99 | 276,038 |
