| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,942 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,200 |
| One Border Countries | 0 | - | 4.98 | 468,659 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,829,214 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,969 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,482 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 312,721 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,302 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,420 |
| Countries with Two Borders | 0 | - | 4.99 | 149,816 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,345 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,028 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,923 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,372 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,606 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,092 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,751 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,743 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,161 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,464,996 |
| Landlocked Countries | 0 | - | 4.99 | 420,585 |
| Countries with the Most Borders | 0 | - | 4.97 | 388,503 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,959 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,613 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,452 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,904 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,162 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,320 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,737 |
| Himalayan Countries | 0 | - | 4.95 | 138,107 |
| Andean Countries | 0 | - | 4.95 | 84,276 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,496 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,351 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,126 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,576 |
| Danube Countries | 0 | - | 4.97 | 71,839 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,804 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,245 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,983 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,437 |
| European Landlocked Countries | 0 | - | 4.99 | 146,977 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,387 |
| Countries with the Most Species | 0 | - | 4.99 | 103,099 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,542 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,508 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,660 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,448 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,118 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,509 |
| Countries in the Alps | 0 | - | 4.87 | 117,964 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,573 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,728 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,549 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,461 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,316 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,835 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,474 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,343 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,079 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,707 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,568 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,421 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,075 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,355 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,369 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,551 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,182 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,693 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,831 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,211 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,687 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,113 |
| Largest Countries By Category | 0 | - | 4.97 | 157,936 |
| Countries by Countries | 0 | - | 4.97 | 63,018 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,472 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,219 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,514 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,865 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,612 |
| Bordering Countries by HDI Difference | 0 | - | 4.88 | 51,934 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,163 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,350 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,063 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,265 |
| Island Countries | 0 | - | 4.99 | 710,421 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,957 |
| Northernmost Countries | 0 | - | 4.99 | 361,260 |
| Countries of South America | 0 | - | 5.00 | 925,158 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,113 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,107 |
| "Land" Countries | 0 | - | 4.98 | 336,512 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,422 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,878 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,076 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,369 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,966 |
| Random Countries by Borders | 0 | - | 4.99 | 82,450 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,481 |
| Countries with Megacities | 0 | - | 4.99 | 263,477 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,321 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,260 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,616 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,294 |
| Countries by Official Language | 0 | - | 4.95 | 194,949 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,968 |
| Countries in their Native Language | 0 | - | 4.99 | 198,469 |
| Independence from Whom | 0 | - | 4.99 | 211,729 |
| Subdivisions by Country | 0 | - | 4.86 | 50,363 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,997 |
| Megadiverse Countries | 0 | - | 4.96 | 134,889 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,813 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,264 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,848 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,061 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,919 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,486 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,230 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,568 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,045 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,355 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,798 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,096 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,873 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,254 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,420 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,707 |
| World Map Quiz | 0 | - | 4.81 | 64,881 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,437 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,796 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,103 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,833 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,798 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,735 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,867 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,176 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,356 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,445 |
| Widest Countries East to West | 0 | - | 4.92 | 129,511 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,417 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,179 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,066 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,643 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,419 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,710 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,312 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,765 |
| Countries with Double Letters | 0 | - | 4.97 | 95,441 |
| Countries that End in N | 0 | - | 4.95 | 170,480 |
| Countries with Five Letters | 0 | - | 4.96 | 281,453 |
| Countries with Six Letters | 0 | - | 4.94 | 212,889 |
| Countries with W | 0 | - | 4.97 | 159,781 |
| Countries with Z | 0 | - | 4.98 | 290,712 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,044 |
| Countries That End in U | 0 | - | 4.95 | 120,543 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,042 |
| Countries that End in O | 0 | - | 4.92 | 159,306 |
| Countries that End in R | 0 | - | 4.87 | 118,817 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,589 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,655 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,347 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,237 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,857 |
| Countries That End in Y | 0 | - | 4.91 | 185,739 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,552 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,638 |
| Countries that End in I | 0 | - | 4.94 | 134,967 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,750 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,679 |
| Countries That End in NIA | 0 | - | 4.92 | 109,637 |
| Countries That End in BIA | 0 | - | 4.93 | 148,997 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,894 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,221 |
| Countries That End in RIA | 0 | - | 4.93 | 126,658 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,790 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,145 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,439 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,828 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,355 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,430 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,816 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,364 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,313 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,296 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,745 |
| Countries that End in L | 0 | - | 4.94 | 156,676 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,865 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,196 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,917 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,834 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,885 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,448 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,413 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,822 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,353 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,856 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,732 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,023 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,675 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,645 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,768 |
