| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,302 |
| Countries in World War I | 0 | - | 4.88 | 226,502 |
| Battle to Country | 0 | - | 4.91 | 52,465 |
| Important Cities in WWII | 0 | - | 4.42 | 92,844 |
| Independence from Whom | 0 | - | 4.99 | 209,549 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,632 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,956 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,636 |
| Countries by Founding Story | 0 | - | 4.95 | 76,471 |
| Communist Countries in History | 0 | - | 4.63 | 492,234 |
| Recently Independent Countries | 0 | - | 4.98 | 157,908 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,376 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,992 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,672 |
| Countries by Former Name | 0 | - | 4.99 | 124,199 |
| Historical City to Country | 0 | - | 4.84 | 78,101 |
| Cities Bombed During WWII | 0 | - | 4.08 | 29,886 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,875,738 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,120 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,269 |
| WWII First Names | 0 | - | 4.44 | 41,540 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,106 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,210 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,200 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,551 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,515 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,744 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,144 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,792 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,335 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,249 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,850 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,229 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,647 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,523 |
| Landlocked Countries | 0 | - | 4.99 | 413,126 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,922 |
| Orthodox Countries | 0 | - | 4.91 | 130,299 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,341 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,958 |
| Monarchies of Europe | 0 | - | 4.90 | 97,248 |
| Monarchies of Asia | 0 | - | 4.97 | 70,557 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,400 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,042 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,523 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,641 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,701 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,147 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,323 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,185 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,029 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,190 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,062 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,466 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,317 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,936 |
| Countries by Independence Day | 0 | - | 4.56 | 52,589 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,257 |
| Island Countries | 0 | - | 4.99 | 707,379 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,371 |
| Himalayan Countries | 0 | - | 4.95 | 135,152 |
| Andean Countries | 0 | - | 4.94 | 82,722 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,143 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,069 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,816 |
| Former Countries by Capital | 0 | - | 4.45 | 126,995 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,510 |
| Danube Countries | 0 | - | 4.97 | 71,027 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,690 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,484 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,350 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,274 |
| European Landlocked Countries | 0 | - | 4.99 | 145,695 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,105 |
| Countries with the Most Species | 0 | - | 4.99 | 95,214 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,256 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,187 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,345 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,925 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,537 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,893 |
| Countries in the Alps | 0 | - | 4.87 | 116,739 |
| Former Countries | 0 | - | 4.75 | 132,618 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,506 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,150 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,967 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,360 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,094 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,955 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,505 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,710 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,819 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,006 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,178 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,010 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,395 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,701 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,702 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,949 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,590 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,217 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,720 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,982 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,469 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,562 |
| Largest Countries By Category | 0 | - | 4.97 | 156,668 |
| Countries by Countries | 0 | - | 4.96 | 62,203 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,807 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,225 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,289 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,944 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,310 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,699 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,758 |
| Northernmost Countries | 0 | - | 4.99 | 357,419 |
| Political Movements by Country | 0 | - | 4.46 | 72,238 |
| Countries of South America | 0 | - | 5.00 | 913,865 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,226 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,329 |
| "Land" Countries | 0 | - | 4.98 | 333,496 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,057 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,142 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,086 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,620 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,063 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,164 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,061 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,380 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,940 |
| Countries with Megacities | 0 | - | 4.99 | 246,387 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,864 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,771 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,317 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,724 |
| Countries by Official Language | 0 | - | 4.95 | 192,652 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,965 |
| Countries in their Native Language | 0 | - | 4.99 | 196,523 |
| Subdivisions by Country | 0 | - | 4.86 | 50,041 |
| Megadiverse Countries | 0 | - | 4.97 | 133,848 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,698 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,894 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,387 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,846 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,578 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,093 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,192 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,726 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,452 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,382 |
| Hindu Countries | 0 | - | 4.85 | 49,483 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,454 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,470 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,634 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,996 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,418 |
| World Map Quiz | 0 | - | 4.81 | 63,413 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,369 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,259 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,454 |
| Countries by Road Signs | 0 | - | 4.98 | 53,037 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,223 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,919 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,881 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,582 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,803 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,000 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,209 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,905 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,284 |
| Widest Countries East to West | 0 | - | 4.92 | 128,553 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,199 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,133 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,534 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,647 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,554 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,973 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,037 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,557 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,683 |
| Countries with Double Letters | 0 | - | 4.97 | 93,271 |
| Countries that End in N | 0 | - | 4.94 | 156,337 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,547 |
| Countries with Six Letters | 0 | - | 4.93 | 210,250 |
| Countries with W | 0 | - | 4.97 | 158,151 |
| Countries with Z | 0 | - | 4.98 | 287,725 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,464 |
| Countries That End in U | 0 | - | 4.95 | 119,471 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,429 |
| Countries that End in O | 0 | - | 4.92 | 158,500 |
| Countries that End in R | 0 | - | 4.87 | 118,233 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,824 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,913 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,228 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,419 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,681 |
| Countries That End in Y | 0 | - | 4.90 | 185,171 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,238 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,588 |
| Countries that End in I | 0 | - | 4.94 | 134,349 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,076 |
