| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,611 |
| Countries in World War I | 0 | - | 4.88 | 228,660 |
| Battle to Country | 0 | - | 4.91 | 53,670 |
| Important Cities in WWII | 0 | - | 4.42 | 93,697 |
| Independence from Whom | 0 | - | 4.99 | 212,387 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,953 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,667 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,645 |
| Countries by Founding Story | 0 | - | 4.95 | 77,473 |
| Communist Countries in History | 0 | - | 4.63 | 497,083 |
| Recently Independent Countries | 0 | - | 4.98 | 159,627 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,464 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,080 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,588 |
| Countries by Former Name | 0 | - | 4.99 | 125,491 |
| Historical City to Country | 0 | - | 4.84 | 78,724 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,236 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,682,752 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 237,898 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 78,141 |
| WWII First Names | 0 | - | 4.44 | 41,887 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,040 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,626 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,363 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,022 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,391 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,700 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,527 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,863 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,009 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,600 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,711 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,903 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,205 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,013 |
| Landlocked Countries | 0 | - | 4.99 | 423,241 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,992 |
| Orthodox Countries | 0 | - | 4.92 | 132,443 |
| Countries that Have Won the Most Battles | 0 | - | 4.01 | 39,687 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,202 |
| Monarchies of Europe | 0 | - | 4.90 | 98,498 |
| Monarchies of Asia | 0 | - | 4.97 | 71,326 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,111 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,787,611 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,177 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,954 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,446 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,065 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,950 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,161 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,530 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,497 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,427 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,573 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,715 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,919 |
| Countries by Independence Day | 0 | - | 4.62 | 52,811 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,145 |
| Island Countries | 0 | - | 4.99 | 711,519 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,105 |
| Himalayan Countries | 0 | - | 4.94 | 139,282 |
| Andean Countries | 0 | - | 4.93 | 84,918 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,135 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,296 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,712 |
| Former Countries by Capital | 0 | - | 4.45 | 127,668 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,029 |
| Danube Countries | 0 | - | 4.97 | 72,153 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,226 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,564 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,577 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,085 |
| European Landlocked Countries | 0 | - | 4.99 | 147,303 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,870 |
| Countries with the Most Species | 0 | - | 4.99 | 103,359 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,005 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,656 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,773 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,635 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,389 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,804 |
| Countries in the Alps | 0 | - | 4.87 | 118,407 |
| Former Countries | 0 | - | 4.77 | 134,019 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,846 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,321 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,769 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,742 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,654 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,061 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,846 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,627 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,259 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,980 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,732 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,603 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,341 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,586 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,657 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,224 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,426 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,897 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,279 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,612 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,486 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,332 |
| Largest Countries By Category | 0 | - | 4.97 | 158,441 |
| Countries by Countries | 0 | - | 4.96 | 63,383 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,386,906 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,886 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,897 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,330 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,597 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,818 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,493 |
| Northernmost Countries | 0 | - | 4.99 | 362,612 |
| Political Movements by Country | 0 | - | 4.46 | 72,670 |
| Countries of South America | 0 | - | 5.00 | 929,127 |
| Countries of Oceania | 0 | - | 5.00 | 1,059,121 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,881,280 |
| "Land" Countries | 0 | - | 4.98 | 337,697 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,727 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,564 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,189 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,514 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,036 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,426 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,263 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,469 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,280 |
| Countries with Megacities | 0 | - | 4.99 | 265,464 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,103 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,671 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,346 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,741 |
| Countries by Official Language | 0 | - | 4.95 | 195,511 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,744 |
| Countries in their Native Language | 0 | - | 4.99 | 199,298 |
| Subdivisions by Country | 0 | - | 4.87 | 50,496 |
| Megadiverse Countries | 0 | - | 4.96 | 135,111 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,320 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,425 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,309 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,144 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,301 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,429 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,720 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,190 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,961 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,973 |
| Hindu Countries | 0 | - | 4.87 | 50,389 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,285 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,024 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,448 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,562 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,614 |
| World Map Quiz | 0 | - | 4.81 | 65,279 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,935 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,471 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,273 |
| Countries by Road Signs | 0 | - | 4.98 | 54,144 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,358 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,441 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,145 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,659 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,047 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,154 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,416 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,510 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,667 |
| Widest Countries East to West | 0 | - | 4.92 | 129,778 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,483 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,755 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,400 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,861 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,732 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,994 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,422 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,826 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,496 |
| Countries with Double Letters | 0 | - | 4.96 | 96,536 |
| Countries that End in N | 0 | - | 4.95 | 171,435 |
| Countries with Five Letters | 0 | - | 4.96 | 282,989 |
| Countries with Six Letters | 0 | - | 4.94 | 213,855 |
| Countries with W | 0 | - | 4.96 | 160,546 |
| Countries with Z | 0 | - | 4.98 | 291,787 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,906 |
| Countries That End in U | 0 | - | 4.95 | 120,967 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,674 |
| Countries that End in O | 0 | - | 4.92 | 159,617 |
| Countries that End in R | 0 | - | 4.87 | 119,042 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,800 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,358 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,850 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,602 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,510 |
| Countries That End in Y | 0 | - | 4.91 | 185,955 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,093 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,012 |
| Countries that End in I | 0 | - | 4.94 | 135,180 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,275 |
