| One Border Countries | 0 | - | 4.98 | 470,974 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,842,199 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,859 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,566 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,593 |
| Largest Countries with No Borders | 0 | - | 4.97 | 222,019 |
| Countries with Two Borders | 0 | - | 4.99 | 150,242 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,662 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,356 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,585 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,679 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,813 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,289 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,829 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,821 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,368 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,849 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,816 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,032 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,424 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,548 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,689 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,240 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,979 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,073 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,585 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,471 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,532 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,679 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,735,956 |
| Landlocked Countries | 0 | - | 4.99 | 423,855 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 93,023 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,792,378 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,368 |
| Himalayan Countries | 0 | - | 4.94 | 139,540 |
| Andean Countries | 0 | - | 4.94 | 85,069 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,249 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,465 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,811 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,122 |
| Danube Countries | 0 | - | 4.97 | 72,215 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,312 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,629 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,716 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,221 |
| European Landlocked Countries | 0 | - | 4.99 | 147,383 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,985 |
| Countries with the Most Species | 0 | - | 4.99 | 103,425 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,116 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,682 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,793 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,704 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,440 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,854 |
| Countries in the Alps | 0 | - | 4.87 | 118,497 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,087 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,463 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,814 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,816 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,750 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,098 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,924 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,675 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,302 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,019 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,762 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,632 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,391 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,639 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,725 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,385 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,476 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,257 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,365 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,935 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,666 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,382 |
| Largest Countries By Category | 0 | - | 4.97 | 158,551 |
| Countries by Countries | 0 | - | 4.96 | 63,443 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,350 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,909 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,283 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,120 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,593 |
| Island Countries | 0 | - | 4.99 | 711,780 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,503 |
| Northernmost Countries | 0 | - | 4.99 | 363,097 |
| Countries of South America | 0 | - | 5.00 | 930,005 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,330 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,487 |
| "Land" Countries | 0 | - | 4.98 | 337,895 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,834 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,610 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,250 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,574 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,198 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,245 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,381 |
| Random Countries by Borders | 0 | - | 4.99 | 82,859 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,452 |
| Countries with Megacities | 0 | - | 4.99 | 265,891 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,247 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,756 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,502 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,854 |
| Countries by Official Language | 0 | - | 4.95 | 195,650 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,127 |
| Countries in their Native Language | 0 | - | 4.99 | 199,427 |
| Independence from Whom | 0 | - | 4.99 | 212,577 |
| Subdivisions by Country | 0 | - | 4.87 | 50,537 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,076 |
| Megadiverse Countries | 0 | - | 4.96 | 135,157 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,449 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,464 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,345 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,164 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,377 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,701 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,746 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,748 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,207 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,098 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,273 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,332 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,062 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,478 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,603 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,854 |
| World Map Quiz | 0 | - | 4.81 | 65,382 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,675 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,690 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,342 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,975 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,205 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,327 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,539 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,588 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,140 |
| Widest Countries East to West | 0 | - | 4.92 | 130,206 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,531 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,028 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,439 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,933 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,812 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,096 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,448 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,854 |
| Countries with Double Letters | 0 | - | 4.96 | 96,692 |
| Countries that End in N | 0 | - | 4.95 | 171,571 |
| Countries with Five Letters | 0 | - | 4.96 | 283,226 |
| Countries with Six Letters | 0 | - | 4.94 | 214,032 |
| Countries with W | 0 | - | 4.96 | 160,647 |
| Countries with Z | 0 | - | 4.98 | 291,979 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,013 |
| Countries That End in U | 0 | - | 4.95 | 121,029 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,801 |
| Countries that End in O | 0 | - | 4.92 | 159,675 |
| Countries that End in R | 0 | - | 4.87 | 119,078 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,833 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,474 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,941 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,653 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,581 |
| Countries That End in Y | 0 | - | 4.91 | 186,001 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,196 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,081 |
| Countries that End in I | 0 | - | 4.94 | 135,218 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,385 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,938 |
| Countries That End in NIA | 0 | - | 4.92 | 109,928 |
| Countries That End in BIA | 0 | - | 4.93 | 149,408 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,341 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,632 |
| Countries That End in RIA | 0 | - | 4.93 | 126,944 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,222 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,117 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,963 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,401 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,942 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,695 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,195 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,495 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,728 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,550 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 54,211 |
| Countries that End in L | 0 | - | 4.94 | 156,998 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,747 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,308 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,156 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,088 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,133 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,126 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,925 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,301 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,059 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,735 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,058 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,175 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,761 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,124 |
