| One Border Countries | 0 | - | 4.98 | 471,845 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,847,939 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,007 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,975 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,726 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,300 |
| Countries with Two Borders | 0 | - | 4.99 | 150,363 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,776 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,513 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,706 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,804 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,883 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,383 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,867 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,851 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,465 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,515 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,897 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,326 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,650 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,741 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,877 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,408 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,277 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,137 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,756 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,561 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,697 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,795 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,862,592 |
| Landlocked Countries | 0 | - | 4.99 | 425,580 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 93,133 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,135 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,137 |
| Himalayan Countries | 0 | - | 4.93 | 140,146 |
| Andean Countries | 0 | - | 4.94 | 85,383 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,529 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,922 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,103 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,381 |
| Danube Countries | 0 | - | 4.97 | 72,351 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,551 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,802 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,061 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,556 |
| European Landlocked Countries | 0 | - | 4.99 | 147,582 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,259 |
| Countries with the Most Species | 0 | - | 4.99 | 103,545 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,369 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,765 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,873 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,822 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,559 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,987 |
| Countries in the Alps | 0 | - | 4.87 | 118,740 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,564 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,812 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,945 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,001 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,919 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,230 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,369 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,833 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,405 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,154 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,853 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,730 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,538 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,765 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,865 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,774 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,592 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,768 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,636 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,586 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,087 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,489 |
| Largest Countries By Category | 0 | - | 4.97 | 158,820 |
| Countries by Countries | 0 | - | 4.96 | 63,619 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,389 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,083 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,247 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,622 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,576 |
| Island Countries | 0 | - | 4.99 | 712,479 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,475 |
| Northernmost Countries | 0 | - | 4.99 | 363,888 |
| Countries of South America | 0 | - | 5.00 | 932,345 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,966 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,500 |
| "Land" Countries | 0 | - | 4.98 | 338,337 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,928 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,137 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,354 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,662 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,320 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,303 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,440 |
| Random Countries by Borders | 0 | - | 4.99 | 83,071 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,093 |
| Countries with Megacities | 0 | - | 4.99 | 267,001 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,801 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,101 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,112 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,214 |
| Countries by Official Language | 0 | - | 4.95 | 195,959 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,579 |
| Countries in their Native Language | 0 | - | 4.99 | 199,701 |
| Independence from Whom | 0 | - | 4.99 | 213,014 |
| Subdivisions by Country | 0 | - | 4.87 | 50,605 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,405 |
| Megadiverse Countries | 0 | - | 4.96 | 135,266 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,917 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,530 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,617 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,224 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,802 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,835 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,091 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,998 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,250 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,491 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,364 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,437 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,138 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,568 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,811 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,302 |
| World Map Quiz | 0 | - | 4.81 | 65,683 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,213 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,053 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,540 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,521 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,412 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,511 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,706 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,680 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,660 |
| Widest Countries East to West | 0 | - | 4.92 | 130,436 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,592 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,235 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,512 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,053 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,954 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,465 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,493 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,888 |
| Countries with Double Letters | 0 | - | 4.96 | 97,030 |
| Countries that End in N | 0 | - | 4.95 | 171,891 |
| Countries with Five Letters | 0 | - | 4.96 | 283,703 |
| Countries with Six Letters | 0 | - | 4.94 | 214,434 |
| Countries with W | 0 | - | 4.96 | 160,908 |
| Countries with Z | 0 | - | 4.98 | 292,396 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,262 |
| Countries That End in U | 0 | - | 4.95 | 121,174 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,074 |
| Countries that End in O | 0 | - | 4.92 | 160,196 |
| Countries that End in R | 0 | - | 4.87 | 119,173 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,924 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,803 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,129 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,811 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,737 |
| Countries That End in Y | 0 | - | 4.91 | 186,081 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,434 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,258 |
| Countries that End in I | 0 | - | 4.94 | 135,308 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,604 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,044 |
| Countries That End in NIA | 0 | - | 4.92 | 110,040 |
| Countries That End in BIA | 0 | - | 4.93 | 149,566 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,519 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,759 |
| Countries That End in RIA | 0 | - | 4.93 | 127,044 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,376 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,557 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,160 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,602 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,154 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,796 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,317 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,532 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,891 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,645 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,398 |
| Countries that End in L | 0 | - | 4.94 | 157,116 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,927 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,340 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,478 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,968 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,437 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,387 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,121 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,419 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,242 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,954 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,197 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,236 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,824 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,228 |
