| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,822 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,220 |
| Landlocked Countries | 0 | - | 4.99 | 425,396 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,878 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,853,052 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 91,501 |
| Top Rice-Producing Countries | 0 | - | 4.95 | 99,409 |
| Top Chocolate Growing Countries | 0 | - | 4.93 | 62,084 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,072 |
| Himalayan Countries | 0 | - | 4.93 | 140,090 |
| Andean Countries | 0 | - | 4.94 | 85,351 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,495 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,881 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,079 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,353 |
| Danube Countries | 0 | - | 4.97 | 72,338 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,524 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,784 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,025 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,532 |
| European Landlocked Countries | 0 | - | 4.99 | 147,562 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,231 |
| Countries with the Most Species | 0 | - | 4.99 | 103,534 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,353 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,758 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,863 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,810 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,542 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,977 |
| Countries in the Alps | 0 | - | 4.87 | 118,718 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,539 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,783 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,936 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,984 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,907 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,214 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,355 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,819 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,391 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,144 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,841 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,716 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,525 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,750 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,852 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,743 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,581 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,740 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,628 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,539 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,052 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,482 |
| Largest Countries By Category | 0 | - | 4.97 | 158,801 |
| Countries by Countries | 0 | - | 4.96 | 63,604 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,213 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,387 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,657 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,068 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,802,209 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,125 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,575 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,506 |
| Island Countries | 0 | - | 4.99 | 712,427 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,339 |
| Northernmost Countries | 0 | - | 4.99 | 363,831 |
| Countries of South America | 0 | - | 5.00 | 932,168 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,714 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,062 |
| "Land" Countries | 0 | - | 4.98 | 338,316 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,922 |
| Top 10 Countries with the Most Volcanoes | 0 | - | 4.53 | 77,650 |
| Top 10 Countries with the Most Time Zones | 0 | - | 4.68 | 156,005 |
| Top 10 Most Protestant European Countries | 0 | - | 4.49 | 36,755 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,392,809 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,048 |
| Countries with Megacities | 0 | - | 4.99 | 266,924 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,761 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,070 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,079 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,187 |
| Countries by Official Language | 0 | - | 4.95 | 195,941 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,548 |
| Countries in their Native Language | 0 | - | 4.99 | 199,684 |
| Independence from Whom | 0 | - | 4.99 | 212,994 |
| Subdivisions by Country | 0 | - | 4.87 | 50,601 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,389 |
| Megadiverse Countries | 0 | - | 4.96 | 135,259 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,899 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,521 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,545 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,220 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,714 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,826 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,070 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,552 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,930 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,249 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,466 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,357 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,427 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,135 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,564 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,769 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,267 |
| World Map Quiz | 0 | - | 4.81 | 65,657 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,076 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,687 |
| Countries by Founding Story | 0 | - | 4.95 | 77,775 |
| Countries by Road Signs | 0 | - | 4.98 | 54,328 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,190 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,032 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,527 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,476 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,403 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,500 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,696 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,672 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,613 |
| Widest Countries East to West | 0 | - | 4.92 | 130,419 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,588 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,217 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,506 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,040 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,947 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,446 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,488 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,886 |
| Countries with Double Letters | 0 | - | 4.96 | 97,007 |
| Countries that End in N | 0 | - | 4.95 | 171,877 |
| Countries with Five Letters | 0 | - | 4.96 | 283,670 |
| Countries with Six Letters | 0 | - | 4.94 | 214,406 |
| Countries with W | 0 | - | 4.96 | 160,898 |
| Countries with Z | 0 | - | 4.98 | 292,373 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,252 |
| Countries That End in U | 0 | - | 4.95 | 121,166 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,059 |
| Countries that End in O | 0 | - | 4.92 | 160,193 |
| Countries that End in R | 0 | - | 4.87 | 119,164 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,918 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,786 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,117 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,797 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,723 |
| Countries That End in Y | 0 | - | 4.91 | 186,078 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,418 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,248 |
| Countries that End in I | 0 | - | 4.94 | 135,300 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,579 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,037 |
| Countries That End in NIA | 0 | - | 4.92 | 110,029 |
| Countries That End in BIA | 0 | - | 4.93 | 149,559 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,498 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,752 |
| Countries That End in RIA | 0 | - | 4.93 | 127,038 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,365 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,531 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,145 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,581 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,144 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,792 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,309 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,530 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,882 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,640 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,687 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,384 |
| Countries that End in L | 0 | - | 4.94 | 157,103 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,887 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,339 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,452 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,948 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,422 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,367 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,112 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,414 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,227 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,936 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,190 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,233 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,633 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,369 |
| One Border Countries | 0 | - | 4.98 | 471,794 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,679 |
| Top 10 Countries with the Most Fishermen | 0 | - | 4.30 | 45,461 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,847,443 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,651,065 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,293 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,969 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,624 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,186 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,577 |
| Countries by National Anthem | 0 | - | 4.93 | 71,402 |
| NATO Countries | 0 | - | 4.98 | 283,281 |
| EU Countries Quiz | 0 | - | 4.99 | 277,714 |
| Recently Independent Countries | 0 | - | 4.98 | 160,300 |
| French-Speaking Countries | 0 | - | 4.85 | 271,614 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,030 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,689 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,223 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 276,790 |
