| Countries With No Rivers | 0 | - | 4.96 | 76,932 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,910 |
| Countries with Fjords | 0 | - | 4.94 | 101,064 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,667 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,823 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,475 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,736 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,084 |
| North Sea Countries | 0 | - | 4.92 | 87,506 |
| Black Sea Countries | 0 | - | 4.87 | 60,660 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,461 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,561 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,287 |
| Megadiverse Countries | 0 | - | 4.96 | 135,049 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,433 |
| African Great Lakes | 0 | - | 4.82 | 66,543 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,992 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,312 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,320 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,657 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,612,387 |
| Capitals by River | 0 | - | 4.55 | 48,346 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,544 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,404 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,248 |
| Landlocked Countries | 0 | - | 4.99 | 422,353 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,781,470 |
| Rivers of the United States | 0 | - | 4.93 | 66,368 |
| Biggest City by River | 0 | - | 4.38 | 52,891 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,680 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,283 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,797 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,874 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,621 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,619 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,574 |
| Island Countries | 0 | - | 4.99 | 711,177 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,706 |
| Himalayan Countries | 0 | - | 4.95 | 138,905 |
| Andean Countries | 0 | - | 4.93 | 84,722 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,923 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,984 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,539 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,879 |
| Danube Countries | 0 | - | 4.97 | 72,063 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,079 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,470 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,384 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,875 |
| European Landlocked Countries | 0 | - | 4.99 | 147,192 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,720 |
| Countries with the Most Species | 0 | - | 4.99 | 103,275 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,838 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,616 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,736 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,574 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,262 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,709 |
| Countries in the Alps | 0 | - | 4.87 | 118,270 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,357 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,105 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,694 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,635 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,557 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,984 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,718 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,542 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,203 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,893 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,678 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,548 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,260 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,511 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,571 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,995 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,344 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,242 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,139 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,127 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,238 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,265 |
| Largest Countries By Category | 0 | - | 4.97 | 158,282 |
| Countries by Countries | 0 | - | 4.96 | 63,275 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,585 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,710 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,331 |
| Northernmost Countries | 0 | - | 4.99 | 362,136 |
| Landforms by Country | 0 | - | 4.52 | 51,988 |
| Countries of South America | 0 | - | 5.00 | 927,902 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,634 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,488 |
| "Land" Countries | 0 | - | 4.98 | 337,443 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,121 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,775 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,114 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,994 |
| Countries with Megacities | 0 | - | 4.99 | 264,801 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,830 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,522 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,085 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,601 |
| Countries by Official Language | 0 | - | 4.95 | 195,319 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,484 |
| Countries in their Native Language | 0 | - | 4.99 | 199,115 |
| Independence from Whom | 0 | - | 4.99 | 212,188 |
| Subdivisions by Country | 0 | - | 4.86 | 50,441 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,799 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,166 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,379 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,255 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,121 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,195 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,181 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,615 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,525 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,056 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,680 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,160 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,743 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,911 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,227 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,986 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,530 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,529 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,374 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,514 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,294 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,389 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,161 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,319 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,030 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,307 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,931 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,047 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,327 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,466 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,601 |
| Widest Countries East to West | 0 | - | 4.92 | 129,684 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,464 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,425 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,134 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,794 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,625 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,907 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,387 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,808 |
| Countries with Double Letters | 0 | - | 4.96 | 96,304 |
| Countries that End in N | 0 | - | 4.95 | 171,200 |
| Countries with Five Letters | 0 | - | 4.96 | 282,623 |
| Countries with Six Letters | 0 | - | 4.94 | 213,636 |
| Countries with W | 0 | - | 4.97 | 160,383 |
| Countries with Z | 0 | - | 4.98 | 291,546 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,756 |
| Countries That End in U | 0 | - | 4.95 | 120,877 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,513 |
| Countries that End in O | 0 | - | 4.92 | 159,534 |
| Countries that End in R | 0 | - | 4.87 | 118,981 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,750 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,163 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,730 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,499 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,420 |
| Countries That End in Y | 0 | - | 4.91 | 185,892 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,969 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,893 |
| Countries that End in I | 0 | - | 4.94 | 135,116 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,149 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,838 |
| Countries That End in NIA | 0 | - | 4.92 | 109,806 |
| Countries That End in BIA | 0 | - | 4.93 | 149,236 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,145 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,449 |
| Countries That End in RIA | 0 | - | 4.93 | 126,824 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,042 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,704 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,749 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,171 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,730 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,591 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,053 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,456 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,444 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,016 |
| Countries that End in L | 0 | - | 4.94 | 156,864 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,916 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,276 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,046 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,977 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,019 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,811 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,691 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,144 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,838 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,506 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,893 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,117 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,714 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,892 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,836,161 |
| One Border Countries | 0 | - | 4.98 | 470,073 |
