| One Border Countries | 0 | - | 4.98 | 441,651 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,602,051 |
| Countries by Borders #1 | 0 | - | 5.00 | 182,167 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 298,130 |
| Longest Border by Country #1 | 0 | - | 4.99 | 140,374 |
| Largest Countries with No Borders | 0 | - | 4.96 | 210,004 |
| Countries with Two Borders | 0 | - | 4.99 | 132,389 |
| Countries by Borders #2 | 0 | - | 4.96 | 122,853 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 135,215 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 125,262 |
| Largest Countries Bordering Each Other | 0 | - | 4.98 | 100,808 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.93 | 81,431 |
| Countries by Borders #3 | 0 | - | 4.99 | 93,491 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 74,091 |
| Longest Border by Country #2 | 0 | - | 4.95 | 117,254 |
| Countries with the Most Borders | 0 | - | 4.97 | 371,490 |
| Bordering Countries Forming Words #2 | 0 | - | 4.96 | 31,177 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 81,311 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 102,724 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 99,766 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 106,623 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 84,036 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 98,309 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 120,949 |
| Which Country Does Not Border... | 0 | - | 4.81 | 89,820 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 49,677 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 75,810 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,443 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 85,956 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.91 | 19,130 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,780,474 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 375,607 |
| Smallest Countries Bordering Each Other | 0 | - | 4.63 | 87,662 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,346,339 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,422,165 |
| Sahara Desert Countries | 0 | - | 4.98 | 142,320 |
| Himalayan Countries | 0 | - | 4.95 | 119,292 |
| Andean Countries | 0 | - | 4.92 | 66,906 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 55,397 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,863 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,476 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 58,119 |
| Danube Countries | 0 | - | 4.97 | 60,050 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,782 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,091 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,715 |
| Countries with the Worst Passports | 0 | - | 4.92 | 61,665 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 135,054 |
| European Landlocked Countries | 0 | - | 4.99 | 140,257 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,679 |
| Countries with the Most Species | 0 | - | 4.99 | 91,833 |
| Countries 197 to 205 | 0 | - | 4.87 | 62,132 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,365 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,486 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,895 |
| Countries that Use the Peso | 0 | - | 4.84 | 49,035 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,453 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,913 |
| Countries in the Alps | 0 | - | 4.86 | 109,273 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,914 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 96,194 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,806 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,723 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,747 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,252 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,186 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,210 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,487 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,129 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,234 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,807 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 38,690 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,509 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,214 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,860 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 107,392 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,274 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,201 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 218,770 |
| World Countries - Blind Typing | 0 | - | 5.00 | 83,106 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 44,543 |
| Largest Countries By Category | 0 | - | 4.97 | 150,249 |
| Countries by Countries | 0 | - | 4.96 | 57,863 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,402 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,053 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 357,428 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 378,734 |
| Island Countries Quiz | 0 | - | 4.99 | 686,559 |
| Biggest Countries by Area | 0 | - | 5.00 | 981,796 |
| Northernmost Countries | 0 | - | 4.99 | 340,568 |
| Countries of South America | 0 | - | 5.00 | 851,741 |
| Countries of Oceania | 0 | - | 5.00 | 962,884 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,704,942 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,233,249 |
| Bordering Countries by Clue #1 | 0 | - | 4.96 | 71,418 |
| Bordering Countries by Clue #2 | 0 | - | 4.94 | 72,887 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 102,025 |
| Borders of One Border Countries | 0 | - | 4.18 | 84,136 |
| Random Countries by Borders | 0 | - | 4.99 | 70,466 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 156,308 |
| Countries with Megacities | 0 | - | 4.99 | 215,371 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 184,929 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 105,282 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 123,149 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 72,099 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 267,196 |
| Countries by Official Language | 0 | - | 4.95 | 182,492 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 279,854 |
| Countries in their Native Language | 0 | - | 4.98 | 187,394 |
| Independence from Whom | 0 | - | 4.99 | 197,870 |
| Subdivisions by Country | 0 | - | 4.86 | 48,233 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 122,184 |
| Megadiverse Countries | 0 | - | 4.96 | 129,982 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 120,530 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,258 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 49,140 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 154,228 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 58,924 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 85,152 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 79,673 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,140 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 65,344 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,233 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,423 |
| Countries with the Highest HDI | 0 | - | 4.95 | 133,779 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 71,676 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,047 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 96,156 |
| Southernmost Countries of the World | 0 | - | 4.99 | 217,027 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 97,784 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 115,276 |
| Countries With the Most Languages | 0 | - | 4.88 | 187,360 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 91,971 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 87,772 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 92,461 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 57,829 |
| Tallest Countries North to South | 0 | - | 4.85 | 114,964 |
| Widest Countries East to West | 0 | - | 4.92 | 123,865 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,007 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,452 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,140 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 89,723 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 124,350 |
| Countries with the Most Desert | 0 | - | 4.93 | 122,676 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,834 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,375 |
| Countries with Double Letters | 0 | - | 4.96 | 80,473 |
| Countries that End in N | 0 | - | 4.93 | 144,593 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 243,597 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 198,818 |
| Countries with W | 0 | - | 4.97 | 132,167 |
| Countries with Z | 0 | - | 4.98 | 274,022 |
| Countries with Letters Missing | 0 | - | 4.97 | 175,414 |
| Countries That End in U | 0 | - | 4.95 | 113,468 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 98,999 |
| Countries that End in O | 0 | - | 4.92 | 153,103 |
| Countries that End in R | 0 | - | 4.84 | 99,514 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,501 |
| Countries Ending in "IA" | 0 | - | 4.99 | 196,644 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 162,490 |
| Countries by Last Two Letters | 0 | - | 4.89 | 121,225 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 134,905 |
| Countries That End in Y | 0 | - | 4.91 | 181,281 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 187,998 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 126,706 |
| Countries that End in I | 0 | - | 4.92 | 117,074 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 157,411 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 91,776 |
| Countries That End in NIA | 0 | - | 4.92 | 104,628 |
| Countries That End in BIA | 0 | - | 4.91 | 141,712 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 160,490 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,107 |
| Countries That End in RIA | 0 | - | 4.89 | 104,959 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 105,207 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 213,381 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 126,249 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 117,984 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 83,984 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 48,003 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 97,059 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,225 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 45,839 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 46,867 |
| Countries that End in L | 0 | - | 4.94 | 151,134 |
| "Land" Countries | 0 | - | 4.98 | 298,624 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 195,975 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,768 |
| City to Country Quiz #1 | 0 | - | 4.95 | 138,492 |
| City to Country Quiz #3 | 0 | - | 4.87 | 103,193 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 74,934 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 217,956 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 191,450 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 121,570 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 139,604 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 214,823 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 146,277 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,451 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 105,448 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,612 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,354 |
