| One Border Countries | 0 | - | 4.98 | 467,027 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,817,715 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,156 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,990 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,790 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,905 |
| Countries with Two Borders | 0 | - | 4.99 | 149,539 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,115 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,787 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,644 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,094 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,444 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,874 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,682 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,695 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,911 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,481 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,407 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,023 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,548 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,850 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,022 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,577 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,368 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,822 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,781 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,695 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,876 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,240 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,241,313 |
| Landlocked Countries | 0 | - | 4.99 | 417,585 |
| Smallest Countries Bordering Each Other | 0 | - | 4.63 | 92,585 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,748,205 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,361 |
| Himalayan Countries | 0 | - | 4.94 | 136,881 |
| Andean Countries | 0 | - | 4.95 | 83,660 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,923 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,248 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,590 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,173 |
| Danube Countries | 0 | - | 4.97 | 71,519 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,356 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,938 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,383 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,443 |
| European Landlocked Countries | 0 | - | 4.99 | 146,271 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,944 |
| Countries with the Most Species | 0 | - | 4.99 | 102,597 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,064 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,374 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,547 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,222 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,882 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,265 |
| Countries in the Alps | 0 | - | 4.86 | 117,484 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,998 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,110 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,334 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,839 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,941 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,357 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,117 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,076 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,882 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,424 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,416 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,265 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,824 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,091 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,099 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,932 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,968 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,492 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,358 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,636 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,876 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,903 |
| Largest Countries By Category | 0 | - | 4.97 | 157,433 |
| Countries by Countries | 0 | - | 4.96 | 62,711 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,119 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,195 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,885 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,248 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,429 |
| Island Countries | 0 | - | 4.99 | 709,244 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,644 |
| Northernmost Countries | 0 | - | 4.99 | 359,908 |
| Countries of South America | 0 | - | 5.00 | 921,203 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,904 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,862,271 |
| "Land" Countries | 0 | - | 4.98 | 335,414 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,346 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,853 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,928 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,129 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,138 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 122,574 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,108 |
| Random Countries by Borders | 0 | - | 4.99 | 82,152 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,602 |
| Countries with Megacities | 0 | - | 4.99 | 249,621 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,445 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,741 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,789 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,705 |
| Countries by Official Language | 0 | - | 4.95 | 194,397 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,214 |
| Countries in their Native Language | 0 | - | 4.99 | 197,961 |
| Independence from Whom | 0 | - | 4.99 | 211,058 |
| Subdivisions by Country | 0 | - | 4.86 | 50,239 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,511 |
| Megadiverse Countries | 0 | - | 4.96 | 134,676 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,098 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,134 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,689 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,977 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,560 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,294 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,773 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,431 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,831 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,578 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,642 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,748 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,704 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,927 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,268 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,845 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,257 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,793 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,515 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,000 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,389 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,571 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,727 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,197 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,188 |
| Widest Countries East to West | 0 | - | 4.92 | 129,251 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,351 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,787 |
| 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 | 94,420 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,081 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,442 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,175 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,703 |
| Countries with Double Letters | 0 | - | 4.97 | 94,770 |
| Countries that End in N | 0 | - | 4.95 | 169,218 |
| Countries with Five Letters | 0 | - | 4.96 | 276,638 |
| Countries with Six Letters | 0 | - | 4.94 | 212,107 |
| Countries with W | 0 | - | 4.97 | 159,286 |
| Countries with Z | 0 | - | 4.98 | 289,457 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,487 |
| Countries That End in U | 0 | - | 4.95 | 120,280 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,506 |
| Countries that End in O | 0 | - | 4.92 | 159,096 |
| Countries that End in R | 0 | - | 4.87 | 118,647 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,427 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,083 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,942 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,963 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,554 |
| Countries That End in Y | 0 | - | 4.90 | 185,568 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,045 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,264 |
| Countries that End in I | 0 | - | 4.94 | 134,773 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,872 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,498 |
| Countries That End in NIA | 0 | - | 4.92 | 109,417 |
| Countries That End in BIA | 0 | - | 4.93 | 148,708 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,567 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,924 |
| Countries That End in RIA | 0 | - | 4.93 | 126,433 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,513 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,366 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,034 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,377 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,979 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,245 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,570 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,107 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,994 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,124 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,366 |
| Countries that End in L | 0 | - | 4.94 | 156,446 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,482 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,128 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,771 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,635 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,693 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,502 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,948 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,483 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,928 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,400 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,150 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,900 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,323 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,559 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,579 |
