| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,842,883 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,612 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,479 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,543 |
| One Border Countries | 0 | - | 4.98 | 471,091 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,644,643 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,651 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,317 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,790 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,883 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,605 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,608 |
| Largest Countries with No Borders | 0 | - | 4.97 | 222,047 |
| Countries with Two Borders | 0 | - | 4.99 | 150,263 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,673 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,378 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,599 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,690 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,819 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,306 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,833 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,825 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,378 |
| Longest Border by Country #3 | 0 | - | 4.99 | 79,848 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,750,993 |
| Landlocked Countries | 0 | - | 4.99 | 424,076 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,939 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,793,614 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,830 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,072 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,454 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,580 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,716 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,450 |
| Himalayan Countries | 0 | - | 4.94 | 139,618 |
| Andean Countries | 0 | - | 4.94 | 85,105 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,293 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,524 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,861 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,153 |
| Danube Countries | 0 | - | 4.97 | 72,233 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,351 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,657 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,763 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,259 |
| European Landlocked Countries | 0 | - | 4.99 | 147,407 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,015 |
| Countries with the Most Species | 0 | - | 4.99 | 103,441 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,143 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,691 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,802 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,715 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,446 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,864 |
| Countries in the Alps | 0 | - | 4.87 | 118,514 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,160 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,496 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,827 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,832 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,761 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,107 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,953 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,695 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,317 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,030 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,770 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,639 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,407 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,649 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,740 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,418 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,488 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,363 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,425 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,015 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,722 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,397 |
| Largest Countries By Category | 0 | - | 4.97 | 158,578 |
| Countries by Countries | 0 | - | 4.96 | 63,461 |
| Pixelated World Map | 0 | - | 5.00 | 143,892 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,034 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,356 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,630 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,349 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,757 |
| All Countries by Population With a Map | 0 | - | 4.99 | 110,358 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,227 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,929 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,266 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,156 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,085 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,484 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,182 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,685 |
| Island Countries | 0 | - | 4.99 | 711,879 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,769 |
| Northernmost Countries | 0 | - | 4.99 | 363,215 |
| Countries of South America | 0 | - | 5.00 | 930,269 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,657 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,884,127 |
| "Land" Countries | 0 | - | 4.98 | 337,951 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,694 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,389,399 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,373 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,080 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,262 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,586 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,207 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,824 |
| Random Countries by Borders | 0 | - | 4.99 | 82,876 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,514 |
| Countries with Megacities | 0 | - | 4.99 | 266,012 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,305 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,773 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,562 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,897 |
| Countries by Official Language | 0 | - | 4.95 | 195,690 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,189 |
| Countries in their Native Language | 0 | - | 4.99 | 199,465 |
| Independence from Whom | 0 | - | 4.99 | 212,647 |
| Subdivisions by Country | 0 | - | 4.87 | 50,543 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,138 |
| Megadiverse Countries | 0 | - | 4.96 | 135,167 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,502 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,465 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,361 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,169 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,395 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,717 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,819 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,759 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,214 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,124 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,279 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,345 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,071 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,487 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,612 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,903 |
| World Map Quiz | 0 | - | 4.81 | 65,400 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,407 |
| Countries by Founding Story | 0 | - | 4.95 | 77,613 |
| Countries by Road Signs | 0 | - | 4.98 | 54,225 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,890 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,760 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,387 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,084 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,233 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,364 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,562 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,601 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,604 |
| Widest Countries East to West | 0 | - | 4.92 | 130,255 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,545 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,053 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,449 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,949 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,824 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,317 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,454 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,858 |
| Countries with Double Letters | 0 | - | 4.96 | 96,731 |
| Countries that End in N | 0 | - | 4.95 | 171,616 |
| Countries with Five Letters | 0 | - | 4.96 | 283,281 |
| Countries with Six Letters | 0 | - | 4.94 | 214,068 |
| Countries with W | 0 | - | 4.96 | 160,685 |
| Countries with Z | 0 | - | 4.98 | 292,031 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,045 |
| Countries That End in U | 0 | - | 4.95 | 121,046 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,830 |
| Countries that End in O | 0 | - | 4.92 | 159,687 |
| Countries that End in R | 0 | - | 4.87 | 119,085 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,840 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,515 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,965 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,676 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,599 |
| Countries That End in Y | 0 | - | 4.91 | 186,011 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,227 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,101 |
| Countries that End in I | 0 | - | 4.94 | 135,226 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,413 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,952 |
| Countries That End in NIA | 0 | - | 4.92 | 109,937 |
| Countries That End in BIA | 0 | - | 4.93 | 149,423 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,355 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,645 |
| Countries That End in RIA | 0 | - | 4.93 | 126,955 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,241 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,161 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,979 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,418 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,970 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,704 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,211 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,495 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,743 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,559 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,537 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 54,231 |
