| Countries of the World Quiz | 0 | - | 5.00 | 47,813,276 |
| Countries by Emojis | 0 | - | 4.99 | 241,598 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 192,207 |
| Landlocked Countries | 0 | - | 4.99 | 424,874 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,798,712 |
| Countries as U.S. First Names | 0 | - | 4.31 | 78,395 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,747 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,426 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,212 |
| Island Countries | 0 | - | 4.99 | 712,233 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,812 |
| Himalayan Countries | 0 | - | 4.93 | 139,897 |
| Andean Countries | 0 | - | 4.94 | 85,247 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,419 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,752 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,987 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,291 |
| Danube Countries | 0 | - | 4.97 | 72,299 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,457 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,743 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,926 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,425 |
| European Landlocked Countries | 0 | - | 4.99 | 147,499 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,147 |
| Countries with the Most Species | 0 | - | 4.99 | 103,509 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,289 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,725 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,838 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,773 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,507 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,936 |
| Countries in the Alps | 0 | - | 4.87 | 118,651 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,422 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,680 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,903 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,933 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,856 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,170 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,295 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,795 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,360 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,098 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,809 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,681 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,480 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,714 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,807 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,600 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,546 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,636 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,534 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,353 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,927 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,457 |
| Largest Countries By Category | 0 | - | 4.97 | 158,727 |
| Countries by Countries | 0 | - | 4.96 | 63,547 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,391,683 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,155 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,375 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,651 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,312 |
| 20 Random Country Flags | 0 | - | 4.99 | 617,998 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,018 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,735 |
| Northernmost Countries | 0 | - | 4.99 | 363,604 |
| Countries of South America | 0 | - | 5.00 | 931,448 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,831 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,886,493 |
| "Land" Countries | 0 | - | 4.98 | 338,179 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 131,602 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,384,567 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,880 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,163 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,924 |
| Countries with Megacities | 0 | - | 4.99 | 266,663 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,633 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,987 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,933 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,100 |
| Countries by Official Language | 0 | - | 4.95 | 195,847 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,419 |
| Countries in their Native Language | 0 | - | 4.99 | 199,618 |
| Independence from Whom | 0 | - | 4.99 | 212,872 |
| Subdivisions by Country | 0 | - | 4.87 | 50,580 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,299 |
| Megadiverse Countries | 0 | - | 4.96 | 135,218 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,831 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,497 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,406 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,200 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,496 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,789 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,001 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,526 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,789 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,232 |
| Countries with Four Letters - Shape Quiz | 0 | - | 4.97 | 101,870 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,331 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,331 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,400 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,115 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,543 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,657 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,135 |
| World Map Quiz | 0 | - | 4.81 | 65,563 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,826 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,625 |
| Countries by Founding Story | 0 | - | 4.95 | 77,725 |
| Countries by Road Signs | 0 | - | 4.98 | 54,288 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,077 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,987 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,471 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,345 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,327 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,452 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,655 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,639 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,428 |
| Widest Countries East to West | 0 | - | 4.92 | 130,368 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,576 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,157 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,484 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,003 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,900 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,396 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,474 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,874 |
| Countries with Double Letters | 0 | - | 4.96 | 96,900 |
| Countries that End in N | 0 | - | 4.95 | 171,780 |
| Countries with Five Letters | 0 | - | 4.96 | 283,533 |
| Countries with Six Letters | 0 | - | 4.94 | 214,257 |
| Countries with W | 0 | - | 4.96 | 160,818 |
| Countries with Z | 0 | - | 4.98 | 292,240 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,170 |
| Countries That End in U | 0 | - | 4.95 | 121,112 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,979 |
| Countries that End in O | 0 | - | 4.92 | 159,749 |
| Countries that End in R | 0 | - | 4.87 | 119,132 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,889 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,684 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,054 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,755 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,684 |
| Countries That End in Y | 0 | - | 4.91 | 186,047 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,352 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,183 |
| Countries that End in I | 0 | - | 4.94 | 135,267 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,515 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,006 |
| Countries That End in NIA | 0 | - | 4.92 | 109,994 |
| Countries That End in BIA | 0 | - | 4.93 | 149,511 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,436 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,702 |
| Countries That End in RIA | 0 | - | 4.93 | 127,011 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,305 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,401 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,077 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,518 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,088 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,763 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,264 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,520 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,827 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,608 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,631 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,321 |
| Countries that End in L | 0 | - | 4.94 | 157,065 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,668 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,330 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,257 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,820 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,376 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,303 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,060 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,379 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,181 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,877 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,148 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,211 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,802 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,187 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,845,694 |
| One Border Countries | 0 | - | 4.98 | 471,543 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,371 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,648,859 |
| Strongest Nation Brands | 0 | - | 4.50 | 37,773 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,408 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,557,843 |
| Random Country Shape to Country | 0 | - | 4.90 | 115,048 |
| Beers by Country | 0 | - | 4.45 | 97,616 |
| Countries that Beat China | 0 | - | 4.85 | 116,633 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,576 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,254 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,868 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,566 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,842 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,124 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,522 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,209 |
| Countries by National Anthem | 0 | - | 4.92 | 71,391 |
