| Countries in World War I | 0 | - | 4.88 | 229,187 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,178 |
| Battle to Country | 0 | - | 4.91 | 53,981 |
| Independence from Whom | 0 | - | 4.99 | 213,118 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,474 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,862 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,136 |
| Countries by Founding Story | 0 | - | 4.95 | 77,820 |
| Recently Independent Countries | 0 | - | 4.98 | 160,371 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,989 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,808 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,198 |
| Countries by Former Name | 0 | - | 4.99 | 125,855 |
| Historical City to Country | 0 | - | 4.85 | 79,036 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,893,261 |
| Countries in World War II | 0 | - | 4.53 | 919,044 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,430 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,911 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,544 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,208 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,521 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,866 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,782 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,098 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,718 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,696 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,167 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,493 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,595 |
| Political Movements by Country | 0 | - | 4.46 | 72,781 |
| Landlocked Countries | 0 | - | 4.99 | 426,070 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,805,605 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,259 |
| National Founders | 0 | - | 4.40 | 83,977 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,455 |
| Orthodox Countries | 0 | - | 4.92 | 132,823 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,507 |
| Monarchies of Europe | 0 | - | 4.90 | 98,889 |
| Monarchies of Asia | 0 | - | 4.97 | 71,515 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,296 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,566 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,614 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,737 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,793 |
| Island Countries | 0 | - | 4.99 | 712,631 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,377 |
| Himalayan Countries | 0 | - | 4.93 | 140,336 |
| Andean Countries | 0 | - | 4.94 | 85,517 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,660 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,074 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,236 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,464 |
| Danube Countries | 0 | - | 4.97 | 72,429 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,624 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,860 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,166 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,649 |
| European Landlocked Countries | 0 | - | 4.99 | 147,625 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,337 |
| Countries with the Most Species | 0 | - | 4.99 | 103,579 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,434 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,783 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,892 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,852 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,590 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,033 |
| Countries in the Alps | 0 | - | 4.87 | 118,806 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,682 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,908 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,975 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,041 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,982 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,278 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,430 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,882 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,437 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,196 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,892 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,754 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,573 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,945 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,816 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,907 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,894 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,632 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,076 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,704 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,804 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,205 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,526 |
| Largest Countries By Category | 0 | - | 4.97 | 158,892 |
| Countries by Countries | 0 | - | 4.96 | 63,664 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,742 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,356 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,357 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,854 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,238 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,286 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,409 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,677 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,125 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,964 |
| Northernmost Countries | 0 | - | 4.99 | 364,102 |
| Countries of South America | 0 | - | 5.00 | 932,946 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,697 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,889,932 |
| "Land" Countries | 0 | - | 4.98 | 338,434 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,915 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,815 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,758 |
| Countries by Independence Day | 0 | - | 4.62 | 52,862 |
| Former Countries by Capital | 0 | - | 4.45 | 127,822 |
| Former Countries | 0 | - | 4.77 | 134,241 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,581 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,650 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,040 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,254 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,030 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,251 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,727 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,323 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,420 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,562 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,219 |
| Countries with Megacities | 0 | - | 4.99 | 267,231 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,902 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,166 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,216 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,281 |
| Countries by Official Language | 0 | - | 4.95 | 196,034 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,677 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,387 |
| Countries in their Native Language | 0 | - | 4.99 | 199,766 |
| Subdivisions by Country | 0 | - | 4.87 | 50,624 |
| Megadiverse Countries | 0 | - | 4.96 | 135,292 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,973 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,546 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,704 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,232 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,292 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,573 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,079 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,262 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,573 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,387 |
| Hindu Countries | 0 | - | 4.87 | 50,588 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,449 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,157 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,593 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,886 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,406 |
| World Map Quiz | 0 | - | 4.81 | 65,765 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,369 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,728 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,709 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,793 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,299 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,110 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,581 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,635 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,461 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,561 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,760 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,710 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,760 |
| Widest Countries East to West | 0 | - | 4.92 | 130,569 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,603 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,275 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,524 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,072 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,999 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,499 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,509 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,896 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,880 |
| Countries with Double Letters | 0 | - | 4.96 | 97,122 |
| Countries that End in N | 0 | - | 4.95 | 171,992 |
| Countries with Five Letters | 0 | - | 4.96 | 283,910 |
| Countries with Six Letters | 0 | - | 4.94 | 214,531 |
| Countries with W | 0 | - | 4.96 | 160,987 |
| Countries with Z | 0 | - | 4.98 | 292,507 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,317 |
| Countries That End in U | 0 | - | 4.95 | 121,208 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,140 |
| Countries that End in O | 0 | - | 4.92 | 160,230 |
| Countries that End in R | 0 | - | 4.87 | 119,195 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,954 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,893 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,179 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,848 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,778 |
| Countries That End in Y | 0 | - | 4.91 | 186,098 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,488 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,296 |
| Countries that End in I | 0 | - | 4.94 | 135,330 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,651 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,068 |
| Countries That End in NIA | 0 | - | 4.92 | 110,076 |
| Countries That End in BIA | 0 | - | 4.93 | 149,593 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,564 |
