| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,733 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 91,422 |
| Top Rice-Producing Countries | 0 | - | 4.95 | 99,311 |
| Top Chocolate Growing Countries | 0 | - | 4.93 | 61,998 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,731,955 |
| Landlocked Countries | 0 | - | 4.99 | 423,816 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,792,067 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,346 |
| Himalayan Countries | 0 | - | 4.94 | 139,521 |
| Andean Countries | 0 | - | 4.94 | 85,060 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,244 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,447 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,805 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,116 |
| Danube Countries | 0 | - | 4.97 | 72,209 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,305 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,624 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,706 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,214 |
| European Landlocked Countries | 0 | - | 4.99 | 147,376 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,975 |
| Countries with the Most Species | 0 | - | 4.99 | 103,421 |
| 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 | 47,792 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,694 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,439 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,850 |
| Countries in the Alps | 0 | - | 4.87 | 118,491 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,073 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,451 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,811 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,812 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,747 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,098 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,918 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,672 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,298 |
| 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 | 41,630 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,387 |
| 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 | 119,376 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,475 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,229 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,352 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,913 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,654 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,381 |
| Largest Countries By Category | 0 | - | 4.97 | 158,546 |
| Countries by Countries | 0 | - | 4.96 | 63,439 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,008 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,348 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,621 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,906 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,012 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,247 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,317 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,851 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,615 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,804 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,275 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,042 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,683 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,958 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,942 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,830 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,510 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,235 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,097 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,549 |
| Island Countries | 0 | - | 4.99 | 711,756 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,431 |
| Northernmost Countries | 0 | - | 4.99 | 363,070 |
| Countries of South America | 0 | - | 5.00 | 929,961 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,242 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,343 |
| "Land" Countries | 0 | - | 4.98 | 337,882 |
| United States Immigration by Country | 0 | - | 4.69 | 161,241 |
| Countries With the Most Expats | 0 | - | 4.69 | 49,589 |
| Countries with the Most Immigrants per Capita | 0 | - | 4.53 | 62,622 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,498 |
| 10 Easternmost Countries in Africa | 0 | - | 4.97 | 24,468 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,429 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,443 |
| Countries with Megacities | 0 | - | 4.99 | 265,866 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,235 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,752 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,497 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,847 |
| Countries by Official Language | 0 | - | 4.95 | 195,638 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,070 |
| Countries in their Native Language | 0 | - | 4.99 | 199,414 |
| Independence from Whom | 0 | - | 4.99 | 212,563 |
| Subdivisions by Country | 0 | - | 4.87 | 50,534 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,071 |
| Megadiverse Countries | 0 | - | 4.96 | 135,155 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,438 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,460 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,339 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,163 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,374 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,699 |
| 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 | 108,233 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,331 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,059 |
| 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 | 111,826 |
| World Map Quiz | 0 | - | 4.81 | 65,380 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,266 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,531 |
| Countries by Founding Story | 0 | - | 4.95 | 77,535 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,656 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,676 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,332 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,960 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,193 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,313 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,534 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,584 |
| Tallest Countries North to South | 0 | - | 4.85 | 128,906 |
| Widest Countries East to West | 0 | - | 4.92 | 130,189 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,530 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,023 |
| 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 | 148,806 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,083 |
| 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 | 96,682 |
| Countries that End in N | 0 | - | 4.95 | 171,562 |
| Countries with Five Letters | 0 | - | 4.96 | 283,210 |
| Countries with Six Letters | 0 | - | 4.94 | 214,023 |
| Countries with W | 0 | - | 4.96 | 160,641 |
| Countries with Z | 0 | - | 4.98 | 291,968 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,006 |
| Countries That End in U | 0 | - | 4.95 | 121,022 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,793 |
| Countries that End in O | 0 | - | 4.92 | 159,671 |
| Countries that End in R | 0 | - | 4.87 | 119,073 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,831 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,468 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,935 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,650 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,575 |
| Countries That End in Y | 0 | - | 4.91 | 185,999 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,189 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,075 |
| Countries that End in I | 0 | - | 4.94 | 135,215 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,378 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,931 |
| Countries That End in NIA | 0 | - | 4.92 | 109,923 |
| Countries That End in BIA | 0 | - | 4.93 | 149,401 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,336 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,620 |
| Countries That End in RIA | 0 | - | 4.93 | 126,938 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,216 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,101 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,954 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,393 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,933 |
| 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 | 103,490 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,722 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,547 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,520 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 54,205 |
| Countries that End in L | 0 | - | 4.94 | 156,994 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,724 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,306 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,152 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,084 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,133 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,117 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,921 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,301 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,056 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,728 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,054 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,172 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,759 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,121 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,248 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,712 |
| One Border Countries | 0 | - | 4.98 | 470,954 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,841,965 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,642,979 |
| Countries by Net Migration | 0 | - | 4.52 | 84,091 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,121 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,611 |
