| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,818,564 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,551 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,431 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,052 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,574 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,872 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,054 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,594 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,831 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,807 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,729 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,907 |
| One Border Countries | 0 | - | 4.98 | 467,129 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,252 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,941 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,159 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,311 |
| Random Countries by Borders | 0 | - | 4.99 | 82,183 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,255,399 |
| Countries with Four Letters | 0 | - | 4.99 | 421,079 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,183 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 312,047 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,813 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,948 |
| Countries with Two Borders | 0 | - | 4.99 | 149,554 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,129 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,809 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,673 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,114 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,462 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,899 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,690 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,696 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,928 |
| Landlocked Countries | 0 | - | 4.99 | 417,845 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,749,632 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,522 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,150 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,993 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,462 |
| Himalayan Countries | 0 | - | 4.94 | 136,958 |
| Andean Countries | 0 | - | 4.95 | 83,706 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,949 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,296 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,625 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,202 |
| Danube Countries | 0 | - | 4.97 | 71,544 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,383 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,957 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,440 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,496 |
| European Landlocked Countries | 0 | - | 4.99 | 146,486 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,970 |
| Countries with the Most Species | 0 | - | 4.99 | 102,667 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,103 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,382 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,552 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,237 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,901 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,281 |
| Countries in the Alps | 0 | - | 4.86 | 117,521 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,021 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,151 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,346 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,865 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,966 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,371 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,137 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,095 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,897 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,449 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,427 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,279 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,839 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,105 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,123 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,969 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,984 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,509 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,386 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,750 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,940 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,915 |
| Largest Countries By Category | 0 | - | 4.97 | 157,463 |
| Countries by Countries | 0 | - | 4.96 | 62,737 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,216 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,019 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,298 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,532 |
| Island Countries | 0 | - | 4.99 | 709,312 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,841 |
| Northernmost Countries | 0 | - | 4.99 | 359,981 |
| Countries of South America | 0 | - | 5.00 | 921,476 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,262 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,862,897 |
| "Land" Countries | 0 | - | 4.98 | 335,502 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,358 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,024 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,373,292 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 236,091 |
| European Countries with One Border | 0 | - | 4.97 | 182,349 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,189 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,658 |
| Countries with Megacities | 0 | - | 4.99 | 249,727 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,499 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,770 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,829 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,744 |
| Countries by Official Language | 0 | - | 4.95 | 194,434 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,256 |
| Countries in their Native Language | 0 | - | 4.99 | 197,998 |
| Independence from Whom | 0 | - | 4.99 | 211,102 |
| Subdivisions by Country | 0 | - | 4.86 | 50,249 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,542 |
| Megadiverse Countries | 0 | - | 4.96 | 134,690 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,121 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,142 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,695 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,985 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,583 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,307 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,802 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,443 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,893 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,616 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,653 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,832 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,723 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,010 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,276 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,901 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,290 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,808 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,531 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,038 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,411 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,587 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,740 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,208 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,198 |
| Widest Countries East to West | 0 | - | 4.92 | 129,260 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,357 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,817 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,964 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,436 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,103 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,458 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,183 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,706 |
| Countries with Double Letters | 0 | - | 4.97 | 94,839 |
| Countries that End in N | 0 | - | 4.95 | 169,369 |
| Countries with Five Letters | 0 | - | 4.96 | 277,681 |
| Countries with Six Letters | 0 | - | 4.94 | 212,191 |
| Countries with W | 0 | - | 4.97 | 159,332 |
| Countries with Z | 0 | - | 4.98 | 289,535 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,537 |
| Countries That End in U | 0 | - | 4.95 | 120,312 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,552 |
| Countries that End in O | 0 | - | 4.92 | 159,121 |
| Countries that End in R | 0 | - | 4.87 | 118,667 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,448 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,122 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,980 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,984 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,577 |
| Countries That End in Y | 0 | - | 4.90 | 185,585 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,072 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,292 |
| Countries that End in I | 0 | - | 4.94 | 134,800 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,916 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,514 |
| Countries That End in NIA | 0 | - | 4.92 | 109,432 |
| Countries That End in BIA | 0 | - | 4.93 | 148,734 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,599 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,949 |
| Countries That End in RIA | 0 | - | 4.93 | 126,443 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,537 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,419 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,074 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,413 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,995 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,257 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,585 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,124 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,137 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,394 |
| Countries that End in L | 0 | - | 4.94 | 156,462 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,564 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,132 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,785 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,652 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,703 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,543 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,986 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,502 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,961 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,433 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,355 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,904 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,331 |
