| One Border Countries | 0 | - | 4.98 | 469,688 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,833,525 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,604 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 312,994 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,396 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,630 |
| Countries with Two Borders | 0 | - | 4.99 | 149,920 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,461 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,142 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,036 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,484 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,685 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,154 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,775 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,769 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,234 |
| Countries with the Most Borders | 0 | - | 4.97 | 388,959 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,684 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,667 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,101 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,294 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,456 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,988 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,737 |
| Bordering Countries by HDI Difference | 0 | - | 4.88 | 51,984 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,292 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,007 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,321 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,504 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,557,498 |
| Landlocked Countries | 0 | - | 4.99 | 421,648 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 92,882 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,776,396 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,292 |
| Himalayan Countries | 0 | - | 4.95 | 138,581 |
| Andean Countries | 0 | - | 4.93 | 84,526 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,714 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,714 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,345 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,740 |
| Danube Countries | 0 | - | 4.97 | 71,967 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,967 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,384 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,231 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,714 |
| European Landlocked Countries | 0 | - | 4.99 | 147,093 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,574 |
| Countries with the Most Species | 0 | - | 4.99 | 103,202 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,705 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,570 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,706 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,518 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,200 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,623 |
| Countries in the Alps | 0 | - | 4.87 | 118,154 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,893 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,980 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,623 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,566 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,460 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,923 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,630 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,462 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,157 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,811 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,633 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,494 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,189 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,436 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,487 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,826 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,284 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 63,244 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,015 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,759 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,003 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,194 |
| Largest Countries By Category | 0 | - | 4.97 | 158,156 |
| Countries by Countries | 0 | - | 4.96 | 63,163 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,269 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,641 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,307 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,425 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,996 |
| Island Countries | 0 | - | 4.99 | 710,918 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,451 |
| Northernmost Countries | 0 | - | 4.99 | 361,803 |
| Countries of South America | 0 | - | 5.00 | 926,854 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,297 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,876,291 |
| "Land" Countries | 0 | - | 4.98 | 337,240 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,682 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,859 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,135 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,441 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 109,037 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,118 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,277 |
| Random Countries by Borders | 0 | - | 4.99 | 82,587 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,796 |
| Countries with Megacities | 0 | - | 4.99 | 264,369 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,660 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,421 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,925 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,489 |
| Countries by Official Language | 0 | - | 4.95 | 195,195 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,279 |
| Countries in their Native Language | 0 | - | 4.99 | 198,982 |
| Independence from Whom | 0 | - | 4.99 | 212,012 |
| Subdivisions by Country | 0 | - | 4.86 | 50,420 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,671 |
| Megadiverse Countries | 0 | - | 4.96 | 134,981 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,026 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,332 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,214 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,093 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,076 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,577 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,418 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,629 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,126 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,621 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,856 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,182 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,946 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,334 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,474 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,096 |
| World Map Quiz | 0 | - | 4.81 | 65,040 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,016 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,239 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,960 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,114 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,849 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,980 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,269 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,421 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,549 |
| Widest Countries East to West | 0 | - | 4.92 | 129,618 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,441 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,341 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,108 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,748 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,557 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,831 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,364 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,794 |
| Countries with Double Letters | 0 | - | 4.96 | 96,152 |
| Countries that End in N | 0 | - | 4.95 | 171,035 |
| Countries with Five Letters | 0 | - | 4.96 | 282,275 |
| Countries with Six Letters | 0 | - | 4.94 | 213,461 |
| Countries with W | 0 | - | 4.97 | 160,264 |
| Countries with Z | 0 | - | 4.98 | 291,349 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,627 |
| Countries That End in U | 0 | - | 4.95 | 120,815 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,389 |
| Countries that End in O | 0 | - | 4.92 | 159,485 |
| Countries that End in R | 0 | - | 4.87 | 118,946 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,703 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,002 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,641 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,436 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,354 |
| Countries That End in Y | 0 | - | 4.91 | 185,854 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,849 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,811 |
| Countries that End in I | 0 | - | 4.94 | 135,063 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,022 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,793 |
| Countries That End in NIA | 0 | - | 4.92 | 109,753 |
| Countries That End in BIA | 0 | - | 4.93 | 149,159 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,061 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,391 |
| Countries That End in RIA | 0 | - | 4.93 | 126,782 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,980 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,507 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,651 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,051 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,609 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,553 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,987 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,432 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,489 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,395 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,939 |
| Countries that End in L | 0 | - | 4.94 | 156,799 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,562 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,253 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,997 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,923 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,968 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,676 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,607 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,944 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,497 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,384 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,833 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,079 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,695 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,850 |
