| Landlocked Countries | 0 | - | 4.99 | 420,818 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,483,982 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 158,894 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 86,599 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,892 |
| Himalayan Countries | 0 | - | 4.95 | 138,212 |
| Andean Countries | 0 | - | 4.95 | 84,328 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,554 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,438 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,179 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,605 |
| Danube Countries | 0 | - | 4.97 | 71,865 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,840 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,267 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,037 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,504 |
| European Landlocked Countries | 0 | - | 4.99 | 147,005 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,420 |
| Countries with the Most Species | 0 | - | 4.99 | 103,125 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,569 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,523 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,459 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,136 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,534 |
| Countries in the Alps | 0 | - | 4.87 | 118,006 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,002 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,787 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,561 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,476 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,348 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,851 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,501 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,366 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,097 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,723 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,574 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,432 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,097 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,370 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,393 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,609 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,194 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,715 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,860 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,344 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,753 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,131 |
| Largest Countries By Category | 0 | - | 4.97 | 157,978 |
| Countries by Countries | 0 | - | 4.96 | 63,051 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,503 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,228 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,522 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,547 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,710 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,529 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,140 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,445 |
| Island Countries | 0 | - | 4.99 | 710,554 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,280 |
| Northernmost Countries | 0 | - | 4.99 | 361,380 |
| Countries of South America | 0 | - | 5.00 | 925,492 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,578 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,886 |
| "Land" Countries | 0 | - | 4.98 | 336,846 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,518 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,570 |
| Countries with Megacities | 0 | - | 4.99 | 263,672 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,407 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,299 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,682 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,338 |
| Countries by Official Language | 0 | - | 4.95 | 194,999 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,035 |
| Countries in their Native Language | 0 | - | 4.99 | 198,507 |
| Independence from Whom | 0 | - | 4.99 | 211,786 |
| Subdivisions by Country | 0 | - | 4.86 | 50,378 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,127 |
| Megadiverse Countries | 0 | - | 4.96 | 134,909 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,857 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,280 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,860 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,067 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,956 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,502 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,269 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,957 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,582 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,048 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,410 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,806 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,118 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,892 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,265 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,429 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,800 |
| World Map Quiz | 0 | - | 4.81 | 64,918 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,555 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,224 |
| Countries by Founding Story | 0 | - | 4.95 | 77,249 |
| Countries by Road Signs | 0 | - | 4.98 | 53,861 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,845 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,130 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,852 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,856 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,758 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,892 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,196 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,370 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,468 |
| Widest Countries East to West | 0 | - | 4.92 | 129,537 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,420 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,218 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,075 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,660 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,444 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,727 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,325 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,772 |
| Countries with Double Letters | 0 | - | 4.97 | 95,799 |
| Countries that End in N | 0 | - | 4.95 | 170,740 |
| Countries with Five Letters | 0 | - | 4.96 | 281,809 |
| Countries with Six Letters | 0 | - | 4.94 | 213,154 |
| Countries with W | 0 | - | 4.97 | 160,042 |
| Countries with Z | 0 | - | 4.98 | 291,000 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,381 |
| Countries That End in U | 0 | - | 4.95 | 120,679 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,176 |
| Countries that End in O | 0 | - | 4.92 | 159,396 |
| Countries that End in R | 0 | - | 4.87 | 118,868 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,638 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,779 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,444 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,298 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,970 |
| Countries That End in Y | 0 | - | 4.91 | 185,787 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,637 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,680 |
| Countries that End in I | 0 | - | 4.94 | 134,999 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,816 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,722 |
| Countries That End in NIA | 0 | - | 4.92 | 109,665 |
| Countries That End in BIA | 0 | - | 4.93 | 149,048 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,939 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,268 |
| Countries That End in RIA | 0 | - | 4.93 | 126,703 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,842 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,233 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,489 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,885 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,444 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,476 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,873 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,393 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,370 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,331 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,095 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,802 |
| Countries that End in L | 0 | - | 4.94 | 156,712 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,002 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,225 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,164 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,935 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,857 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,901 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,496 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,459 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,852 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,387 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,949 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,752 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,034 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,653 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,779 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,198 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,451 |
| One Border Countries | 0 | - | 4.98 | 468,783 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,829,984 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,625,299 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,752 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,882 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,951 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,426 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,575 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,105 |
| Countries by National Anthem | 0 | - | 4.93 | 71,253 |
| NATO Countries | 0 | - | 4.98 | 280,607 |
| EU Countries Quiz | 0 | - | 4.99 | 274,478 |
| Recently Independent Countries | 0 | - | 4.98 | 159,285 |
| French-Speaking Countries | 0 | - | 4.85 | 270,585 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,845 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,136 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,550 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,441 |
| German-Speaking Countries | 0 | - | 4.91 | 145,605 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,848 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,192 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,866 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,678 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,477 |
