| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,258 |
| Countries in World War II | 0 | - | 4.53 | 903,584 |
| Battle to Country | 0 | - | 4.91 | 52,448 |
| Important Cities in WWII | 0 | - | 4.42 | 92,827 |
| Independence from Whom | 0 | - | 4.99 | 209,510 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,600 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,945 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,607 |
| Countries by Founding Story | 0 | - | 4.95 | 76,458 |
| Communist Countries in History | 0 | - | 4.63 | 492,139 |
| Recently Independent Countries | 0 | - | 4.98 | 157,881 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,337 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,936 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,614 |
| Countries by Former Name | 0 | - | 4.99 | 124,170 |
| Historical City to Country | 0 | - | 4.84 | 78,086 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,862,002 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,100 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,079 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,179 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,191 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,526 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,495 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,731 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,120 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,764 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,282 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,245 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,817 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,197 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,625 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,487 |
| Landlocked Countries | 0 | - | 4.99 | 412,977 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,894 |
| Orthodox Countries | 0 | - | 4.91 | 130,270 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,336 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,928 |
| Monarchies of Europe | 0 | - | 4.90 | 97,225 |
| Monarchies of Asia | 0 | - | 4.97 | 70,545 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,383 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,710,727 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,492 |
| Cities Bombed During WWII | 0 | - | 4.08 | 29,883 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,684 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,116 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,304 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,161 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,015 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,180 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,040 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,456 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,155 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,871 |
| Countries by Independence Day | 0 | - | 4.56 | 52,586 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,063 |
| Island Countries | 0 | - | 4.99 | 707,293 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,304 |
| Himalayan Countries | 0 | - | 4.95 | 135,100 |
| Andean Countries | 0 | - | 4.94 | 82,689 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,101 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,024 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,789 |
| Former Countries by Capital | 0 | - | 4.45 | 126,974 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,494 |
| Danube Countries | 0 | - | 4.97 | 71,012 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,661 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,469 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,315 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,231 |
| European Landlocked Countries | 0 | - | 4.99 | 145,681 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,070 |
| Countries with the Most Species | 0 | - | 4.99 | 95,200 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,227 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,178 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,336 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,914 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,525 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,886 |
| Countries in the Alps | 0 | - | 4.87 | 116,707 |
| Former Countries | 0 | - | 4.75 | 132,598 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,491 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,110 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,950 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,336 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,075 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,942 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,486 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,695 |
| Largest Country by Body of Water | 0 | - | 4.95 | 56,351 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,983 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,168 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,003 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,380 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,688 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,688 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,906 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,579 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,209 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,692 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,897 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,410 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,549 |
| Largest Countries By Category | 0 | - | 4.97 | 156,645 |
| Countries by Countries | 0 | - | 4.96 | 62,184 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,395 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,208 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,249 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,937 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,308 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,673 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,522 |
| Northernmost Countries | 0 | - | 4.99 | 357,326 |
| Political Movements by Country | 0 | - | 4.46 | 72,231 |
| Countries of South America | 0 | - | 5.00 | 913,589 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,905 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,609 |
| "Land" Countries | 0 | - | 4.98 | 333,456 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,051 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,132 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,058 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,610 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,053 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,246 |
| WWII First Names | 0 | - | 4.45 | 41,537 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,139 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,741 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,216 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,894 |
| Countries with Megacities | 0 | - | 4.99 | 246,270 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,816 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,750 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,273 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,689 |
| Countries by Official Language | 0 | - | 4.95 | 192,611 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,919 |
| Countries in their Native Language | 0 | - | 4.99 | 196,498 |
| Subdivisions by Country | 0 | - | 4.86 | 50,035 |
| Megadiverse Countries | 0 | - | 4.97 | 133,837 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,669 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,881 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,380 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,840 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,563 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,073 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,185 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,718 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,417 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,373 |
| Hindu Countries | 0 | - | 4.85 | 49,451 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,443 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,457 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,611 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,986 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,381 |
| World Map Quiz | 0 | - | 4.81 | 63,386 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,287 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,233 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,421 |
| Countries by Road Signs | 0 | - | 4.98 | 53,002 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,187 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,894 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,865 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,541 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,785 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,979 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,186 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,887 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,272 |
| Widest Countries East to West | 0 | - | 4.92 | 128,535 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,194 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,099 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,528 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,633 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,528 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,960 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,033 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,553 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,660 |
| Countries with Double Letters | 0 | - | 4.97 | 93,244 |
| Countries that End in N | 0 | - | 4.94 | 156,308 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,519 |
| Countries with Six Letters | 0 | - | 4.93 | 210,214 |
| Countries with W | 0 | - | 4.97 | 158,116 |
| Countries with Z | 0 | - | 4.98 | 287,574 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,445 |
| Countries That End in U | 0 | - | 4.95 | 119,457 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,373 |
| Countries that End in O | 0 | - | 4.92 | 158,485 |
| Countries that End in R | 0 | - | 4.86 | 118,212 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,815 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,886 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,197 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,400 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,580 |
| Countries That End in Y | 0 | - | 4.90 | 185,159 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,200 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,566 |
| Countries that End in I | 0 | - | 4.94 | 134,325 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,040 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,150 |
