| One Border Countries | 0 | - | 4.98 | 467,693 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,822,689 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,305 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 312,300 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,893 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,140 |
| Countries with Two Borders | 0 | - | 4.99 | 149,673 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,216 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,891 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,762 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,202 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,520 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,975 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,721 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,713 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,002 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,947 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,502 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,230 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,716 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,981 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,172 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,704 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,478 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,861 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,955 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,845 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,034 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,317 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,335,223 |
| Landlocked Countries | 0 | - | 4.99 | 418,953 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 92,664 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,756,974 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,002 |
| Himalayan Countries | 0 | - | 4.94 | 137,431 |
| Andean Countries | 0 | - | 4.95 | 83,942 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,232 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,663 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,833 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,353 |
| Danube Countries | 0 | - | 4.97 | 71,666 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,556 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,058 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,657 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,736 |
| European Landlocked Countries | 0 | - | 4.99 | 146,778 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,142 |
| Countries with the Most Species | 0 | - | 4.99 | 102,909 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,272 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,433 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,589 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,303 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,994 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,367 |
| Countries in the Alps | 0 | - | 4.87 | 117,688 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,135 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,368 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,424 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,987 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,097 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,588 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,287 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,189 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,970 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,555 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,479 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,338 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,926 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,190 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,207 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,189 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,063 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,572 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,532 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,383 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,231 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,000 |
| Largest Countries By Category | 0 | - | 4.97 | 157,641 |
| Countries by Countries | 0 | - | 4.96 | 62,838 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,161 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,324 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,010 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,612 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,113 |
| Island Countries | 0 | - | 4.99 | 709,764 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,058 |
| Northernmost Countries | 0 | - | 4.99 | 360,476 |
| Countries of South America | 0 | - | 5.00 | 922,919 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,061 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,390 |
| "Land" Countries | 0 | - | 4.98 | 335,799 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,442 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,744 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,990 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,264 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,828 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 122,634 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,159 |
| Random Countries by Borders | 0 | - | 4.99 | 82,289 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,022 |
| Countries with Megacities | 0 | - | 4.99 | 260,030 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,897 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,994 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,173 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,005 |
| Countries by Official Language | 0 | - | 4.95 | 194,644 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,539 |
| Countries in their Native Language | 0 | - | 4.99 | 198,189 |
| Independence from Whom | 0 | - | 4.99 | 211,319 |
| Subdivisions by Country | 0 | - | 4.86 | 50,287 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,710 |
| Megadiverse Countries | 0 | - | 4.96 | 134,768 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,544 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,185 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,756 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,018 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,714 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,381 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,981 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,487 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,988 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,978 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,717 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,995 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,775 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,153 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,326 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,199 |
| World Map Quiz | 0 | - | 4.81 | 64,520 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,506 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,928 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,639 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,327 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,519 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,672 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,829 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,260 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,286 |
| Widest Countries East to West | 0 | - | 4.92 | 129,378 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,382 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,963 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,994 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,511 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,222 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,550 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,233 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,728 |
| Countries with Double Letters | 0 | - | 4.97 | 95,095 |
| Countries that End in N | 0 | - | 4.95 | 170,000 |
| Countries with Five Letters | 0 | - | 4.96 | 280,236 |
| Countries with Six Letters | 0 | - | 4.94 | 212,485 |
| Countries with W | 0 | - | 4.97 | 159,522 |
| Countries with Z | 0 | - | 4.98 | 289,809 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,753 |
| Countries That End in U | 0 | - | 4.95 | 120,414 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,756 |
| Countries that End in O | 0 | - | 4.92 | 159,198 |
| Countries that End in R | 0 | - | 4.87 | 118,734 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,513 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,336 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,109 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,084 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,666 |
| Countries That End in Y | 0 | - | 4.90 | 185,647 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,227 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,428 |
| Countries that End in I | 0 | - | 4.94 | 134,871 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,083 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,579 |
| Countries That End in NIA | 0 | - | 4.92 | 109,517 |
| Countries That End in BIA | 0 | - | 4.93 | 148,843 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,720 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,061 |
| Countries That End in RIA | 0 | - | 4.93 | 126,541 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,631 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,708 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,231 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,588 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,119 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,328 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,688 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,245 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,127 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,198 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,537 |
| Countries that End in L | 0 | - | 4.94 | 156,542 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,026 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,155 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,840 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,725 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,784 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,785 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,170 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,627 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,130 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,617 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,584 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,957 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,600 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,667 |
