| Countries in World War I | 0 | - | 4.88 | 228,510 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,438 |
| Battle to Country | 0 | - | 4.91 | 53,558 |
| Independence from Whom | 0 | - | 4.99 | 212,188 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,799 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,616 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,525 |
| Countries by Founding Story | 0 | - | 4.95 | 77,408 |
| Recently Independent Countries | 0 | - | 4.98 | 159,512 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,309 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,844 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,387 |
| Countries by Former Name | 0 | - | 4.99 | 125,384 |
| Historical City to Country | 0 | - | 4.84 | 78,657 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,612,551 |
| Countries in World War II | 0 | - | 4.55 | 915,031 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,906 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,535 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,318 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,941 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,354 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,655 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,430 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,786 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,641 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,573 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,563 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,691 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,085 |
| Political Movements by Country | 0 | - | 4.46 | 72,630 |
| Landlocked Countries | 0 | - | 4.99 | 422,355 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,781,480 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,937 |
| National Founders | 0 | - | 4.40 | 83,890 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,832 |
| Orthodox Countries | 0 | - | 4.92 | 132,296 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,078 |
| Monarchies of Europe | 0 | - | 4.90 | 98,376 |
| Monarchies of Asia | 0 | - | 4.97 | 71,245 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,040 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,040 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,875 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,619 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,574 |
| Island Countries | 0 | - | 4.99 | 711,178 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,707 |
| Himalayan Countries | 0 | - | 4.95 | 138,906 |
| Andean Countries | 0 | - | 4.93 | 84,723 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,923 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,985 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,541 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,880 |
| Danube Countries | 0 | - | 4.97 | 72,063 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,080 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,470 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,384 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,875 |
| European Landlocked Countries | 0 | - | 4.99 | 147,192 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,720 |
| Countries with the Most Species | 0 | - | 4.99 | 103,275 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,838 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,616 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,736 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,574 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,262 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,709 |
| Countries in the Alps | 0 | - | 4.87 | 118,270 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,360 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,105 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,694 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,635 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,557 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,984 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,718 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,542 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,203 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,895 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,678 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,548 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,260 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,295 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,511 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,571 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,995 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,344 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,242 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,139 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,127 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,238 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,265 |
| Largest Countries By Category | 0 | - | 4.97 | 158,282 |
| Countries by Countries | 0 | - | 4.96 | 63,275 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,849 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,832 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,627 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,406 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,591 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,744 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,304 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,577 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,711 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,339 |
| Northernmost Countries | 0 | - | 4.99 | 362,137 |
| Countries of South America | 0 | - | 5.00 | 927,903 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,634 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,490 |
| "Land" Countries | 0 | - | 4.98 | 337,443 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,379 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,286 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,523 |
| Countries by Independence Day | 0 | - | 4.61 | 52,785 |
| Former Countries by Capital | 0 | - | 4.45 | 127,615 |
| Former Countries | 0 | - | 4.75 | 133,950 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,829 |
| Country by Photo of its Leader | 0 | - | 4.72 | 124,281 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,808 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,505 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,451 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,049 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,434 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,968 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,776 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,115 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,999 |
| Countries with Megacities | 0 | - | 4.99 | 264,804 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,830 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,522 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,086 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,601 |
| Countries by Official Language | 0 | - | 4.95 | 195,319 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,484 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,730 |
| Countries in their Native Language | 0 | - | 4.99 | 199,115 |
| Subdivisions by Country | 0 | - | 4.86 | 50,442 |
| Megadiverse Countries | 0 | - | 4.96 | 135,049 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,166 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,379 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,256 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,121 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,181 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,056 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,680 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,160 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,743 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,911 |
| Hindu Countries | 0 | - | 4.86 | 50,318 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,227 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,986 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,374 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,514 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,294 |
| World Map Quiz | 0 | - | 4.81 | 65,144 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,472 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,389 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,393 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,129 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,161 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,319 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,030 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,308 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,931 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,047 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,327 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,466 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,601 |
| Widest Countries East to West | 0 | - | 4.92 | 129,684 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,464 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,425 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,134 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,794 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,625 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,907 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,387 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,808 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,086 |
| Countries with Double Letters | 0 | - | 4.96 | 96,304 |
| Countries that End in N | 0 | - | 4.95 | 171,200 |
| Countries with Five Letters | 0 | - | 4.96 | 282,626 |
| Countries with Six Letters | 0 | - | 4.94 | 213,636 |
| Countries with W | 0 | - | 4.97 | 160,383 |
| Countries with Z | 0 | - | 4.98 | 291,547 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,756 |
| Countries That End in U | 0 | - | 4.95 | 120,877 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,513 |
| Countries that End in O | 0 | - | 4.92 | 159,534 |
| Countries that End in R | 0 | - | 4.87 | 118,981 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,751 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,163 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,730 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,499 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,420 |
| Countries That End in Y | 0 | - | 4.91 | 185,892 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,970 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,893 |
| Countries that End in I | 0 | - | 4.94 | 135,116 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,149 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,839 |
| Countries That End in NIA | 0 | - | 4.92 | 109,806 |
| Countries That End in BIA | 0 | - | 4.93 | 149,236 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,145 |
