| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 82,376 |
| Countries with the Most Sheep | 0 | - | 4.87 | 85,111 |
| Countries that Catch the Most Fish | 0 | - | 4.89 | 106,191 |
| Countries with the Most Wolves | 0 | - | 4.89 | 89,304 |
| Countries With The Most Bird Species | 0 | - | 4.92 | 22,037 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 20,447 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,592,489 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 372,995 |
| Countries with the Most Wild Elephants | 0 | - | 4.56 | 52,656 |
| Animal Populations of Countries | 0 | - | 4.51 | 41,807 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 91,108 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,330,713 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,403,279 |
| Sahara Desert Countries | 0 | - | 4.98 | 141,056 |
| Himalayan Countries | 0 | - | 4.95 | 118,238 |
| Andean Countries | 0 | - | 4.92 | 66,192 |
| Countries with the Oldest Median Age | 0 | - | 4.83 | 67,298 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 54,944 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,112 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,010 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 57,714 |
| Danube Countries | 0 | - | 4.97 | 59,762 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,437 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 80,840 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,033 |
| Countries with the Worst Passports | 0 | - | 4.91 | 60,015 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 134,089 |
| European Landlocked Countries | 0 | - | 4.99 | 139,718 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,167 |
| Countries with the Most Species | 0 | - | 4.99 | 91,626 |
| Countries 197 to 205 | 0 | - | 4.87 | 61,667 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,244 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,378 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,646 |
| Countries that Use the Peso | 0 | - | 4.83 | 48,824 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,259 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,683 |
| Countries in the Alps | 0 | - | 4.86 | 108,519 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,592 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 95,679 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,555 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,465 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,293 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,017 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 93,877 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 48,988 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,318 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 57,873 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,053 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,660 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 38,526 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,288 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,010 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,626 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 106,837 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,078 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,015 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 217,545 |
| World Countries - Blind Typing | 0 | - | 5.00 | 82,481 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 44,376 |
| Largest Countries By Category | 0 | - | 4.97 | 149,913 |
| Countries by Countries | 0 | - | 4.96 | 57,689 |
| Country Flags with the Most White | 0 | - | 4.87 | 130,106 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,301 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,000 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 82,764 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 356,470 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 377,311 |
| Island Countries Quiz | 0 | - | 4.99 | 685,151 |
| Countries with NO Snakes | 0 | - | 4.51 | 62,856 |
| Biggest Countries by Area | 0 | - | 5.00 | 978,765 |
| Northernmost Countries | 0 | - | 4.99 | 339,747 |
| Countries of South America | 0 | - | 5.00 | 847,527 |
| Countries of Oceania | 0 | - | 5.00 | 958,090 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,695,738 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,223,161 |
| Countries with Wild Lions | 0 | - | 4.74 | 23,764 |
| Where Do Musk Oxen Live? | 0 | - | 4.62 | 14,907 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 155,026 |
| Countries with Megacities | 0 | - | 4.99 | 213,724 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 183,993 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 104,753 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 105,209 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 71,455 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 265,781 |
| Countries by Official Language | 0 | - | 4.95 | 181,819 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 278,746 |
| Countries in their Native Language | 0 | - | 4.98 | 186,780 |
| Independence from Whom | 0 | - | 4.99 | 197,268 |
| Subdivisions by Country | 0 | - | 4.86 | 48,122 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 121,762 |
| Megadiverse Countries | 0 | - | 4.96 | 129,753 |
| Countries With the Most English Speakers | 0 | - | 4.90 | 116,435 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,109 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 49,058 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 153,812 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 58,754 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 84,795 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,248 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 79,525 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,076 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 64,421 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,100 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,257 |
| Countries with the Highest HDI | 0 | - | 4.95 | 133,603 |
| Straight Shot to the Arctic Circle | 0 | - | 4.90 | 71,488 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 67,892 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 95,334 |
| World Map Quiz | 0 | - | 4.88 | 56,121 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 130,675 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 85,666 |
| Countries by Founding Story | 0 | - | 4.94 | 71,714 |
| Countries by Road Signs | 0 | - | 4.98 | 48,677 |
| Southernmost Countries of the World | 0 | - | 4.99 | 216,425 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 97,182 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 114,804 |
| Countries With the Most Languages | 0 | - | 4.88 | 186,533 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 91,731 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 87,376 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 92,097 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 57,597 |
| Tallest Countries North to South | 0 | - | 4.85 | 114,712 |
| Widest Countries East to West | 0 | - | 4.93 | 123,630 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,909 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,194 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,006 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 89,469 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 123,922 |
| Countries with the Most Desert | 0 | - | 4.93 | 122,436 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,733 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 33,286 |
| Countries with Double Letters | 0 | - | 4.96 | 79,731 |
| Countries that End in N | 0 | - | 4.93 | 144,012 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 242,792 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 198,198 |
| Countries with W | 0 | - | 4.97 | 131,695 |
| Countries with Z | 0 | - | 4.98 | 273,273 |
| Countries with Letters Missing | 0 | - | 4.97 | 175,022 |
| Countries That End in U | 0 | - | 4.95 | 113,139 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 98,492 |
| Countries that End in O | 0 | - | 4.92 | 152,848 |
| Countries that End in R | 0 | - | 4.84 | 99,348 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 150,977 |
| Countries Ending in "IA" | 0 | - | 4.99 | 196,024 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 162,127 |
| Countries by Last Two Letters | 0 | - | 4.89 | 120,907 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 134,437 |
| Countries That End in Y | 0 | - | 4.91 | 181,098 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 187,518 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 126,371 |
| Countries that End in I | 0 | - | 4.92 | 116,924 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 156,997 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 91,420 |
| Countries That End in NIA | 0 | - | 4.92 | 104,423 |
| Countries That End in BIA | 0 | - | 4.92 | 141,439 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 159,938 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 113,846 |
| Countries That End in RIA | 0 | - | 4.89 | 104,774 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 104,917 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 212,667 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 125,902 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 117,550 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 83,572 |
| Countries With One Word and Three A's | 0 | - | 4.93 | 47,721 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 96,790 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 118,910 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 45,644 |
| Countries with the Word "And" | 0 | - | 4.98 | 88,733 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 46,476 |
| Countries that End in L | 0 | - | 4.94 | 150,867 |
| "Land" Countries | 0 | - | 4.98 | 298,213 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 195,611 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,700 |
| City to Country Quiz #1 | 0 | - | 4.95 | 138,090 |
| City to Country Quiz #3 | 0 | - | 4.86 | 102,991 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 74,735 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 217,507 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 191,101 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 121,359 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 139,321 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 214,107 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 146,039 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,360 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 105,336 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,521 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,218 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,368,266 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 361,800 |
| Top 10 Countries with the Most Horses | 0 | - | 4.51 | 66,511 |
| One Border Countries | 0 | - | 4.97 | 426,880 |
| Countries with More Cows than People | 0 | - | 4.40 | 48,757 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,590,849 |
| Every Country in its Official/Native Language | 0 | - | 4.97 | 20,716 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 80,755 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 255,161 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 114,600 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 106,919 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 86,866 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 54,053 |
| Countries by National Anthem | 0 | - | 4.94 | 69,561 |
