| Countries in World War I | 0 | - | 4.88 | 226,552 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,353 |
| Battle to Country | 0 | - | 4.91 | 52,485 |
| Independence from Whom | 0 | - | 4.99 | 209,600 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,685 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,973 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,836 |
| Countries by Founding Story | 0 | - | 4.95 | 76,493 |
| Recently Independent Countries | 0 | - | 4.98 | 157,941 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,433 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,060 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,762 |
| Countries by Former Name | 0 | - | 4.99 | 124,242 |
| Historical City to Country | 0 | - | 4.84 | 78,113 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,893,196 |
| Countries in World War II | 0 | - | 4.53 | 904,132 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,149 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,239 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,219 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,563 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,529 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,766 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,162 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,819 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,389 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,262 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,878 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,282 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,675 |
| Political Movements by Country | 0 | - | 4.46 | 72,249 |
| Landlocked Countries | 0 | - | 4.99 | 413,299 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,713,855 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,554 |
| National Founders | 0 | - | 4.40 | 83,642 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,973 |
| Orthodox Countries | 0 | - | 4.91 | 130,335 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,989 |
| Monarchies of Europe | 0 | - | 4.90 | 97,278 |
| Monarchies of Asia | 0 | - | 4.97 | 70,579 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,420 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,548 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,476 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,011 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,601 |
| Island Countries | 0 | - | 4.99 | 707,485 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,443 |
| Himalayan Countries | 0 | - | 4.95 | 135,231 |
| Andean Countries | 0 | - | 4.94 | 82,765 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,174 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,113 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,845 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,550 |
| Danube Countries | 0 | - | 4.97 | 71,047 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,715 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,504 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,398 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,327 |
| European Landlocked Countries | 0 | - | 4.99 | 145,718 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,147 |
| Countries with the Most Species | 0 | - | 4.99 | 95,227 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,288 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,357 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,940 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,549 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,921 |
| Countries in the Alps | 0 | - | 4.87 | 116,770 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,526 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,189 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,985 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,391 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,116 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,971 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,531 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,726 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,109 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,021 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,183 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,023 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,418 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,730 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,714 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,723 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,000 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,612 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,239 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,736 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,093 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,540 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,575 |
| Largest Countries By Category | 0 | - | 4.97 | 156,702 |
| Countries by Countries | 0 | - | 4.96 | 62,227 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,186 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,337 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,201 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,052 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,446 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,326 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,952 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,317 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,722 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,055 |
| Northernmost Countries | 0 | - | 4.99 | 357,547 |
| Countries of South America | 0 | - | 5.00 | 914,158 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,726 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,122 |
| "Land" Countries | 0 | - | 4.98 | 333,556 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,209 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,087 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,480 |
| Countries by Independence Day | 0 | - | 4.56 | 52,596 |
| Former Countries by Capital | 0 | - | 4.45 | 127,024 |
| Former Countries | 0 | - | 4.75 | 132,662 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,783 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,215 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,243 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,073 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,153 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,105 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,642 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,083 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,484 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,473 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,999 |
| Countries with Megacities | 0 | - | 4.99 | 246,520 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,914 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,798 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,369 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,756 |
| Countries by Official Language | 0 | - | 4.95 | 192,706 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,038 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,160 |
| Countries in their Native Language | 0 | - | 4.99 | 196,560 |
| Subdivisions by Country | 0 | - | 4.86 | 50,050 |
| Megadiverse Countries | 0 | - | 4.97 | 133,867 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,738 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,904 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,407 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,848 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,607 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,119 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,203 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,732 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,502 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,398 |
| Hindu Countries | 0 | - | 4.85 | 49,535 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,475 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,486 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,645 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,004 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,491 |
| World Map Quiz | 0 | - | 4.81 | 63,451 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,481 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,286 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,669 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,483 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,271 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,947 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,908 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,646 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,824 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,029 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,239 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,924 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,310 |
| Widest Countries East to West | 0 | - | 4.92 | 128,579 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,210 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,166 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,551 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,668 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,597 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,012 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,046 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,567 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,730 |
| Countries with Double Letters | 0 | - | 4.97 | 93,308 |
| Countries that End in N | 0 | - | 4.94 | 156,371 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,603 |
| Countries with Six Letters | 0 | - | 4.93 | 210,281 |
| Countries with W | 0 | - | 4.97 | 158,178 |
| Countries with Z | 0 | - | 4.98 | 287,789 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,497 |
| Countries That End in U | 0 | - | 4.95 | 119,490 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,477 |
| Countries that End in O | 0 | - | 4.92 | 158,525 |
| Countries that End in R | 0 | - | 4.87 | 118,248 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,844 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,951 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,279 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,456 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,944 |
| Countries That End in Y | 0 | - | 4.90 | 185,183 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,306 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,626 |
| Countries that End in I | 0 | - | 4.94 | 134,378 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,129 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,175 |
| Countries That End in NIA | 0 | - | 4.92 | 108,974 |
| Countries That End in BIA | 0 | - | 4.92 | 147,673 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,023 |
