| One Border Countries | 0 | - | 4.98 | 468,224 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,826,219 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,406 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 312,518 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,018 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,298 |
| Countries with Two Borders | 0 | - | 4.99 | 149,751 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,291 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,971 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,860 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,298 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,576 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,038 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,736 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,732 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,069 |
| Countries with the Most Borders | 0 | - | 4.97 | 388,234 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,553 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,358 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,822 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,086 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,261 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,784 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,547 |
| Bordering Countries by HDI Difference | 0 | - | 4.88 | 51,899 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,083 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,899 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,131 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,368 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,405,555 |
| Landlocked Countries | 0 | - | 4.99 | 419,815 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 92,728 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,762,915 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,371 |
| Himalayan Countries | 0 | - | 4.95 | 137,800 |
| Andean Countries | 0 | - | 4.95 | 84,118 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,345 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,902 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,982 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,458 |
| Danube Countries | 0 | - | 4.97 | 71,751 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,678 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,151 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,827 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,899 |
| European Landlocked Countries | 0 | - | 4.99 | 146,874 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,259 |
| Countries with the Most Species | 0 | - | 4.99 | 103,017 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,419 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,460 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,629 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,380 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,054 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,450 |
| Countries in the Alps | 0 | - | 4.87 | 117,840 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,232 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,565 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,477 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,359 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,222 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,783 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,384 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,269 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,028 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,633 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,529 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,378 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,997 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,273 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,290 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,392 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,124 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,633 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,688 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,811 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,479 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,051 |
| Largest Countries By Category | 0 | - | 4.97 | 157,801 |
| Countries by Countries | 0 | - | 4.97 | 62,939 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,185 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,427 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,763 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,854 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,854 |
| Island Countries | 0 | - | 4.99 | 710,139 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,047,067 |
| Northernmost Countries | 0 | - | 4.99 | 360,914 |
| Countries of South America | 0 | - | 5.00 | 924,185 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,903 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,869,664 |
| "Land" Countries | 0 | - | 4.98 | 336,024 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,519 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,906 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,032 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,320 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,920 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 122,748 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,194 |
| Random Countries by Borders | 0 | - | 4.99 | 82,371 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,287 |
| Countries with Megacities | 0 | - | 4.99 | 262,598 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,121 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,135 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,421 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,182 |
| Countries by Official Language | 0 | - | 4.95 | 194,817 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,772 |
| Countries in their Native Language | 0 | - | 4.99 | 198,360 |
| Independence from Whom | 0 | - | 4.99 | 211,555 |
| Subdivisions by Country | 0 | - | 4.86 | 50,331 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,871 |
| Megadiverse Countries | 0 | - | 4.96 | 134,835 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,688 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,222 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,795 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,040 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,826 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,442 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,110 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,534 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,023 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,205 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,766 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,045 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,833 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,212 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,380 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,472 |
| World Map Quiz | 0 | - | 4.81 | 64,744 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,673 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,027 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,762 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,613 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,627 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,774 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,911 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,322 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,367 |
| Widest Countries East to West | 0 | - | 4.92 | 129,448 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,406 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,076 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,034 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,588 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,330 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,646 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,282 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,746 |
| Countries with Double Letters | 0 | - | 4.97 | 95,274 |
| Countries that End in N | 0 | - | 4.95 | 170,285 |
| Countries with Five Letters | 0 | - | 4.96 | 281,050 |
| Countries with Six Letters | 0 | - | 4.94 | 212,716 |
| Countries with W | 0 | - | 4.97 | 159,645 |
| Countries with Z | 0 | - | 4.98 | 290,501 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,898 |
| Countries That End in U | 0 | - | 4.95 | 120,480 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,906 |
| Countries that End in O | 0 | - | 4.92 | 159,258 |
| Countries that End in R | 0 | - | 4.87 | 118,778 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,550 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,508 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,270 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,167 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,783 |
| Countries That End in Y | 0 | - | 4.91 | 185,690 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,438 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,532 |
| Countries that End in I | 0 | - | 4.94 | 134,917 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,633 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,632 |
| Countries That End in NIA | 0 | - | 4.92 | 109,579 |
| Countries That End in BIA | 0 | - | 4.93 | 148,925 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,828 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,152 |
| Countries That End in RIA | 0 | - | 4.93 | 126,597 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,735 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,951 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,344 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,726 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,257 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,390 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,750 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,328 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,241 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,250 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,657 |
| Countries that End in L | 0 | - | 4.94 | 156,613 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,478 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,173 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,887 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,785 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,834 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,961 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,318 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,734 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,249 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,741 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,652 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,993 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,619 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,731 |
