| City to Country Quiz #1 | 0 | - | 4.97 | 155,939 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,867 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,909 |
| Historical City to Country | 0 | - | 4.84 | 78,568 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,493,263 |
| Landlocked Countries | 0 | - | 4.99 | 420,914 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,770,497 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,956 |
| Himalayan Countries | 0 | - | 4.95 | 138,261 |
| Andean Countries | 0 | - | 4.95 | 84,349 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,574 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,474 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,194 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,614 |
| Danube Countries | 0 | - | 4.97 | 71,882 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,856 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,282 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,074 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,536 |
| European Landlocked Countries | 0 | - | 4.99 | 147,014 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,445 |
| Countries with the Most Species | 0 | - | 4.99 | 103,133 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,584 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,528 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,672 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,465 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,144 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,547 |
| Countries in the Alps | 0 | - | 4.87 | 118,022 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,165 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,805 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,570 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,497 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,366 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,863 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,524 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,384 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,102 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,732 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,580 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,438 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,104 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,375 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,403 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,641 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,205 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,718 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,870 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,399 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,789 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,136 |
| Largest Countries By Category | 0 | - | 4.97 | 157,998 |
| Countries by Countries | 0 | - | 4.96 | 63,068 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,523 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,232 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,525 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,193 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,860 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,552 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,633 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,174 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,521 |
| Island Countries | 0 | - | 4.99 | 710,590 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,435 |
| Northernmost Countries | 0 | - | 4.99 | 361,439 |
| Countries of South America | 0 | - | 5.00 | 925,673 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,804 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,338 |
| "Land" Countries | 0 | - | 4.98 | 336,925 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,824 |
| City to Country Quiz #2 | 0 | - | 4.78 | 108,430 |
| City to Country Quiz #4 | 0 | - | 4.56 | 84,166 |
| City to Country Quiz #5 | 0 | - | 4.74 | 81,052 |
| City to Country Quiz #6 | 0 | - | 4.56 | 65,508 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,600 |
| Countries with Megacities | 0 | - | 4.99 | 263,763 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,443 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,315 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,716 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,359 |
| Countries by Official Language | 0 | - | 4.95 | 195,018 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,073 |
| Countries in their Native Language | 0 | - | 4.99 | 198,529 |
| Independence from Whom | 0 | - | 4.99 | 211,823 |
| Subdivisions by Country | 0 | - | 4.86 | 50,381 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,351 |
| Megadiverse Countries | 0 | - | 4.96 | 134,916 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,881 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,285 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,864 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,071 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,972 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,512 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,295 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,965 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,590 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,048 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,438 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,812 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,126 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,901 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,275 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,434 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,839 |
| World Map Quiz | 0 | - | 4.81 | 64,936 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,628 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,234 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,000 |
| Countries by Founding Story | 0 | - | 4.95 | 77,263 |
| Countries by Road Signs | 0 | - | 4.98 | 53,873 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,872 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,146 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,870 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,893 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,779 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,911 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,204 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,383 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,486 |
| Widest Countries East to West | 0 | - | 4.92 | 129,553 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,424 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,234 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,078 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,670 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,456 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,742 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,330 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,775 |
| Countries With the Tallest People | 0 | - | 4.93 | 94,917 |
| Countries with Double Letters | 0 | - | 4.97 | 95,872 |
| Countries that End in N | 0 | - | 4.95 | 170,792 |
| Countries with Five Letters | 0 | - | 4.96 | 281,880 |
| Countries with Six Letters | 0 | - | 4.94 | 213,217 |
| Countries with W | 0 | - | 4.97 | 160,073 |
| Countries with Z | 0 | - | 4.98 | 291,064 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,427 |
| Countries That End in U | 0 | - | 4.95 | 120,704 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,204 |
| Countries that End in O | 0 | - | 4.92 | 159,409 |
| Countries that End in R | 0 | - | 4.87 | 118,878 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,651 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,812 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,483 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,339 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,119 |
| Countries That End in Y | 0 | - | 4.91 | 185,793 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,681 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,701 |
| Countries that End in I | 0 | - | 4.94 | 135,011 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,859 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,737 |
| Countries That End in NIA | 0 | - | 4.92 | 109,683 |
| Countries That End in BIA | 0 | - | 4.93 | 149,065 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,961 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,284 |
| Countries That End in RIA | 0 | - | 4.93 | 126,714 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,877 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,270 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,508 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,910 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,486 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,490 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,896 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,403 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,390 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,344 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,123 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,819 |
| Countries that End in L | 0 | - | 4.94 | 156,722 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,069 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,228 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,521 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,482 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,874 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,400 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,115 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,764 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,037 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,659 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,788 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,386 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,487 |
| One Border Countries | 0 | - | 4.98 | 468,858 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,830,422 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,626,088 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,403 |
| 48 Asian Countries, 48 Cities | 0 | - | 4.52 | 23,006 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,767 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,923 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,975 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,438 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,592 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,114 |
| Countries by National Anthem | 0 | - | 4.93 | 71,253 |
| NATO Countries | 0 | - | 4.98 | 280,694 |
| EU Countries Quiz | 0 | - | 4.99 | 274,563 |
| Recently Independent Countries | 0 | - | 4.98 | 159,312 |
| French-Speaking Countries | 0 | - | 4.85 | 270,612 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,852 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,177 |
