| One Border Countries | 0 | - | 4.98 | 441,463 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,601,111 |
| Countries by Borders #1 | 0 | - | 5.00 | 182,137 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 298,089 |
| Longest Border by Country #1 | 0 | - | 4.99 | 140,351 |
| Largest Countries with No Borders | 0 | - | 4.96 | 209,965 |
| Countries with Two Borders | 0 | - | 4.99 | 132,359 |
| Countries by Borders #2 | 0 | - | 4.96 | 122,835 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 135,191 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 125,247 |
| Largest Countries Bordering Each Other | 0 | - | 4.98 | 100,793 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.93 | 81,417 |
| Countries by Borders #3 | 0 | - | 4.99 | 93,469 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 74,085 |
| Longest Border by Country #2 | 0 | - | 4.95 | 117,245 |
| Countries with the Most Borders | 0 | - | 4.97 | 371,427 |
| Bordering Countries Forming Words #2 | 0 | - | 4.96 | 31,173 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 81,290 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 102,679 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 99,730 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 106,601 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 84,007 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 98,289 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 120,934 |
| Which Country Does Not Border... | 0 | - | 4.81 | 89,801 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 49,664 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 75,785 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,431 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 85,938 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.91 | 19,114 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,762,845 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 375,365 |
| Smallest Countries Bordering Each Other | 0 | - | 4.63 | 87,651 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,344,626 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,420,441 |
| Sahara Desert Countries | 0 | - | 4.98 | 142,200 |
| Himalayan Countries | 0 | - | 4.95 | 119,195 |
| Andean Countries | 0 | - | 4.92 | 66,839 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 55,369 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,791 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,422 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 58,071 |
| Danube Countries | 0 | - | 4.97 | 60,020 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,742 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,057 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,655 |
| Countries with the Worst Passports | 0 | - | 4.92 | 61,524 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 134,965 |
| European Landlocked Countries | 0 | - | 4.99 | 140,170 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,614 |
| Countries with the Most Species | 0 | - | 4.99 | 91,805 |
| Countries 197 to 205 | 0 | - | 4.87 | 62,073 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,355 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,475 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,871 |
| Countries that Use the Peso | 0 | - | 4.84 | 49,008 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,427 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,890 |
| Countries in the Alps | 0 | - | 4.86 | 109,234 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,877 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 96,136 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,785 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,691 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,712 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,225 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,160 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,177 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,470 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,107 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,218 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,792 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 38,672 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,488 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,190 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,840 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 107,348 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,253 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,185 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 218,667 |
| World Countries - Blind Typing | 0 | - | 5.00 | 83,047 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 44,521 |
| Largest Countries By Category | 0 | - | 4.97 | 150,208 |
| Countries by Countries | 0 | - | 4.96 | 57,842 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,022 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 357,340 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 378,451 |
| Island Countries Quiz | 0 | - | 4.99 | 686,425 |
| Biggest Countries by Area | 0 | - | 5.00 | 981,489 |
| Northernmost Countries | 0 | - | 4.99 | 340,462 |
| Countries of South America | 0 | - | 5.00 | 851,396 |
| Countries of Oceania | 0 | - | 5.00 | 962,477 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,704,084 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,232,207 |
| Bordering Countries by Clue #1 | 0 | - | 4.96 | 71,409 |
| Bordering Countries by Clue #2 | 0 | - | 4.94 | 72,876 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 102,013 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 120,951 |
| Borders of One Border Countries | 0 | - | 4.18 | 84,128 |
| Random Countries by Borders | 0 | - | 4.99 | 70,445 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 156,210 |
| Countries with Megacities | 0 | - | 4.99 | 215,300 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 184,858 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 105,259 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 122,427 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 72,047 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 267,048 |
| Countries by Official Language | 0 | - | 4.95 | 182,420 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 279,766 |
| Countries in their Native Language | 0 | - | 4.98 | 187,350 |
| Independence from Whom | 0 | - | 4.99 | 197,804 |
| Subdivisions by Country | 0 | - | 4.86 | 48,222 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 122,140 |
| Megadiverse Countries | 0 | - | 4.96 | 129,960 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 120,474 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,244 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 49,130 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 154,199 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 58,913 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 85,121 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 79,659 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,136 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 65,281 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,219 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,414 |
| Countries with the Highest HDI | 0 | - | 4.95 | 133,764 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 71,655 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,030 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 96,077 |
| Southernmost Countries of the World | 0 | - | 4.99 | 216,957 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 97,723 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 115,208 |
| Countries With the Most Languages | 0 | - | 4.88 | 187,259 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 91,927 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 87,717 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 92,405 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 57,800 |
| Tallest Countries North to South | 0 | - | 4.85 | 114,942 |
| Widest Countries East to West | 0 | - | 4.92 | 123,843 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,992 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,420 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,122 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 89,696 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 124,317 |
| Countries with the Most Desert | 0 | - | 4.93 | 122,656 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,826 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,365 |
| Countries with Double Letters | 0 | - | 4.96 | 80,432 |
| Countries that End in N | 0 | - | 4.93 | 144,538 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 243,531 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 198,765 |
| Countries with W | 0 | - | 4.97 | 132,128 |
| Countries with Z | 0 | - | 4.98 | 273,956 |
| Countries with Letters Missing | 0 | - | 4.97 | 175,383 |
| Countries That End in U | 0 | - | 4.95 | 113,448 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 98,968 |
| Countries that End in O | 0 | - | 4.92 | 153,082 |
| Countries that End in R | 0 | - | 4.84 | 99,500 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,491 |
| Countries Ending in "IA" | 0 | - | 4.99 | 196,577 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 162,445 |
| Countries by Last Two Letters | 0 | - | 4.89 | 121,188 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 134,705 |
| Countries That End in Y | 0 | - | 4.91 | 181,270 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 187,940 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 126,687 |
| Countries that End in I | 0 | - | 4.92 | 117,064 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 157,346 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 91,751 |
| Countries That End in NIA | 0 | - | 4.92 | 104,614 |
| Countries That End in BIA | 0 | - | 4.92 | 141,687 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 160,460 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,085 |
| Countries That End in RIA | 0 | - | 4.89 | 104,941 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 105,189 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 213,322 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 126,226 |
| Divided Country Name Puzzle #3 | 0 | - | 4.90 | 117,947 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 83,951 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 47,979 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 97,036 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,191 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 45,815 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 46,824 |
| Countries that End in L | 0 | - | 4.94 | 151,111 |
| "Land" Countries | 0 | - | 4.98 | 298,582 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 195,946 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,762 |
| City to Country Quiz #1 | 0 | - | 4.95 | 138,475 |
| City to Country Quiz #3 | 0 | - | 4.87 | 103,178 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 74,919 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 217,913 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 191,419 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 121,549 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 139,579 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 214,784 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 146,257 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,446 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 105,439 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,601 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,344 |
