| Countries in World War I | 0 | - | 4.88 | 227,413 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,267 |
| Battle to Country | 0 | - | 4.91 | 52,906 |
| Independence from Whom | 0 | - | 4.99 | 210,801 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,324 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,210 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,577 |
| Countries by Founding Story | 0 | - | 4.95 | 76,869 |
| Recently Independent Countries | 0 | - | 4.98 | 158,374 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,144 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,119 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,818 |
| Countries by Former Name | 0 | - | 4.99 | 124,660 |
| Historical City to Country | 0 | - | 4.84 | 78,323 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,162,473 |
| Countries in World War II | 0 | - | 4.54 | 908,385 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,783 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,663 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,528 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,888 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,759 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,021 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,533 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,098 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,290 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,366 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,508 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,341 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,179 |
| Political Movements by Country | 0 | - | 4.46 | 72,390 |
| Landlocked Countries | 0 | - | 4.99 | 416,634 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,740,503 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,905 |
| National Founders | 0 | - | 4.40 | 83,736 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,642 |
| Orthodox Countries | 0 | - | 4.92 | 130,927 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,419 |
| Monarchies of Europe | 0 | - | 4.90 | 97,700 |
| Monarchies of Asia | 0 | - | 4.97 | 70,828 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,627 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,094 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,835 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,827 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,768 |
| Island Countries | 0 | - | 4.99 | 708,803 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,920 |
| Himalayan Countries | 0 | - | 4.95 | 136,493 |
| Andean Countries | 0 | - | 4.95 | 83,487 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,748 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,992 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,418 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,025 |
| Danube Countries | 0 | - | 4.97 | 71,429 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,211 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,847 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,151 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,118 |
| European Landlocked Countries | 0 | - | 4.99 | 146,128 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,760 |
| Countries with the Most Species | 0 | - | 4.99 | 101,503 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,895 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,328 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,510 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,158 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,809 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,189 |
| Countries in the Alps | 0 | - | 4.86 | 117,321 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,900 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,887 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,252 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,740 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,819 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,253 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,982 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,993 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,802 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,327 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,365 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,203 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,727 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,426 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,992 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,001 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,710 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,892 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,428 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,244 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,000 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,564 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,825 |
| Largest Countries By Category | 0 | - | 4.97 | 157,252 |
| Countries by Countries | 0 | - | 4.96 | 62,592 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,070 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,765 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 119,446 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,458 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,417 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,869 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,079 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,409 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,085 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,321 |
| Northernmost Countries | 0 | - | 4.99 | 359,371 |
| Countries of South America | 0 | - | 5.00 | 919,666 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,651 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,858,698 |
| "Land" Countries | 0 | - | 4.98 | 334,597 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,636 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,489 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,683 |
| Countries by Independence Day | 0 | - | 4.61 | 52,671 |
| Former Countries by Capital | 0 | - | 4.45 | 127,243 |
| Former Countries | 0 | - | 4.75 | 132,966 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,208 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,618 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,440 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 81,896 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,518 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,788 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,968 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,410 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,914 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,837 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,270 |
| Countries with Megacities | 0 | - | 4.99 | 248,934 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,121 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,542 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,480 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,496 |
| Countries by Official Language | 0 | - | 4.95 | 194,006 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,533 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,868 |
| Countries in their Native Language | 0 | - | 4.99 | 197,631 |
| Subdivisions by Country | 0 | - | 4.86 | 50,196 |
| Megadiverse Countries | 0 | - | 4.96 | 134,537 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,824 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,073 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,626 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,948 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,440 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,546 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,370 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,805 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,158 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,579 |
| Hindu Countries | 0 | - | 4.86 | 49,821 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,684 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,640 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,858 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,201 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,558 |
| World Map Quiz | 0 | - | 4.81 | 64,082 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,368 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,692 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,927 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,181 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,059 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,665 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,394 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,703 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,265 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,458 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,623 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,147 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,636 |
| Widest Countries East to West | 0 | - | 4.92 | 129,139 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,329 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,642 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,915 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,956 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,978 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,354 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,094 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,670 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,255 |
| Countries with Double Letters | 0 | - | 4.96 | 94,119 |
| Countries that End in N | 0 | - | 4.95 | 165,490 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,554 |
| Countries with Six Letters | 0 | - | 4.93 | 211,130 |
| Countries with W | 0 | - | 4.97 | 158,798 |
| Countries with Z | 0 | - | 4.98 | 288,742 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,018 |
| Countries That End in U | 0 | - | 4.95 | 119,907 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,144 |
| Countries that End in O | 0 | - | 4.92 | 158,859 |
| Countries that End in R | 0 | - | 4.87 | 118,504 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,238 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,734 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,728 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,807 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,369 |
| Countries That End in Y | 0 | - | 4.90 | 185,418 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,824 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,086 |
| Countries that End in I | 0 | - | 4.94 | 134,667 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,684 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,406 |
| Countries That End in NIA | 0 | - | 4.92 | 109,294 |
| Countries That End in BIA | 0 | - | 4.93 | 148,557 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,422 |
