| Natural Features of Countries #1 | 0 | - | 4.87 | 83,976 |
| Countries with Fjords | 0 | - | 4.94 | 101,186 |
| African Great Lakes | 0 | - | 4.82 | 66,757 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,536 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,122 |
| North Sea Countries | 0 | - | 4.92 | 87,605 |
| Black Sea Countries | 0 | - | 4.87 | 60,700 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,510 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,616 |
| Countries With No Rivers | 0 | - | 4.96 | 77,032 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,333 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,892 |
| Megadiverse Countries | 0 | - | 4.96 | 135,156 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,808 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,904 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,112 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,411 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 87,422 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,762 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,733,594 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,584 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,510 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,510 |
| Landlocked Countries | 0 | - | 4.99 | 423,834 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,792,198 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,798 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,273 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,806 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,762 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,429 |
| European Countries with One Border | 0 | - | 4.97 | 183,461 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,213 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,830 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,259 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,104 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,565 |
| Island Countries | 0 | - | 4.99 | 711,770 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,354 |
| Himalayan Countries | 0 | - | 4.94 | 139,530 |
| Andean Countries | 0 | - | 4.94 | 85,064 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,247 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,457 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,806 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,118 |
| Danube Countries | 0 | - | 4.97 | 72,209 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,308 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,624 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,711 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,216 |
| European Landlocked Countries | 0 | - | 4.99 | 147,378 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,982 |
| Countries with the Most Species | 0 | - | 4.99 | 103,422 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,113 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,681 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,793 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,697 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,439 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,851 |
| Countries in the Alps | 0 | - | 4.87 | 118,494 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,080 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,457 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,813 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,814 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,749 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,098 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,923 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,674 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,299 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,018 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,762 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,632 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,389 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,639 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,721 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,380 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,476 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,241 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,364 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,924 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,660 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,381 |
| Largest Countries By Category | 0 | - | 4.97 | 158,548 |
| Countries by Countries | 0 | - | 4.96 | 63,443 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,547 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,906 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,464 |
| Northernmost Countries | 0 | - | 4.99 | 363,084 |
| Landforms by Country | 0 | - | 4.52 | 52,004 |
| Countries of South America | 0 | - | 5.00 | 929,992 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,285 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,409 |
| "Land" Countries | 0 | - | 4.98 | 337,888 |
| Countries That Border Russia | 0 | - | 4.98 | 463,815 |
| Countries Bordering France | 0 | - | 4.83 | 404,278 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,267 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,518 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,668 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 89,326 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,117 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,445 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,592 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,270 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,717 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,448 |
| Countries with Megacities | 0 | - | 4.99 | 265,881 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,239 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,753 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,500 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,852 |
| Capitals by River | 0 | - | 4.55 | 48,366 |
| Countries by Official Language | 0 | - | 4.95 | 195,644 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,099 |
| Countries in their Native Language | 0 | - | 4.99 | 199,424 |
| Independence from Whom | 0 | - | 4.99 | 212,570 |
| Subdivisions by Country | 0 | - | 4.87 | 50,534 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,075 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,440 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,463 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,343 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,163 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,279 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,375 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,700 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,742 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,471 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,748 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,207 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,095 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,255 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,332 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,062 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,614 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,601 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,476 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,602 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,837 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,532 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,665 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,682 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,338 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,967 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,197 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,320 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,536 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,586 |
| Tallest Countries North to South | 0 | - | 4.85 | 129,027 |
| Widest Countries East to West | 0 | - | 4.92 | 130,198 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,530 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,024 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,439 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,932 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,807 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,084 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,447 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,853 |
| Countries with Double Letters | 0 | - | 4.96 | 96,686 |
| Countries that End in N | 0 | - | 4.95 | 171,567 |
| Countries with Five Letters | 0 | - | 4.96 | 283,217 |
| Countries with Six Letters | 0 | - | 4.94 | 214,027 |
| Countries with W | 0 | - | 4.96 | 160,644 |
| Countries with Z | 0 | - | 4.98 | 291,971 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,012 |
| Countries That End in U | 0 | - | 4.95 | 121,025 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,797 |
| Countries that End in O | 0 | - | 4.92 | 159,672 |
| Countries that End in R | 0 | - | 4.87 | 119,074 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,833 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,471 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,937 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,650 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,578 |
| Countries That End in Y | 0 | - | 4.91 | 186,000 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,191 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,075 |
| Countries that End in I | 0 | - | 4.94 | 135,216 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,381 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,934 |
| Countries That End in NIA | 0 | - | 4.92 | 109,924 |
| Countries That End in BIA | 0 | - | 4.93 | 149,402 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,338 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,623 |
| Countries That End in RIA | 0 | - | 4.93 | 126,940 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,218 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,109 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,958 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,394 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,937 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,691 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,190 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,491 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,547 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 54,207 |
| Countries that End in L | 0 | - | 4.94 | 156,995 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,730 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,306 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,155 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,086 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,133 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,122 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,923 |
