| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,239 |
| Countries in World War I | 0 | - | 4.88 | 226,184 |
| Battle to Country | 0 | - | 4.91 | 52,441 |
| Important Cities in WWII | 0 | - | 4.42 | 92,818 |
| Independence from Whom | 0 | - | 4.99 | 209,479 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,586 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,939 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,594 |
| Countries by Founding Story | 0 | - | 4.95 | 76,448 |
| Communist Countries in History | 0 | - | 4.63 | 492,107 |
| Recently Independent Countries | 0 | - | 4.98 | 157,867 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,317 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,888 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,584 |
| Countries by Former Name | 0 | - | 4.99 | 124,157 |
| Historical City to Country | 0 | - | 4.84 | 78,084 |
| Cities Bombed During WWII | 0 | - | 4.08 | 29,881 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,854,481 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,079 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,240 |
| WWII First Names | 0 | - | 4.45 | 41,532 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,047 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,161 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,184 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,509 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,488 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,721 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,101 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,755 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,258 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,240 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,808 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,175 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,610 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,467 |
| Landlocked Countries | 0 | - | 4.99 | 412,912 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,880 |
| Orthodox Countries | 0 | - | 4.91 | 130,256 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,334 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,922 |
| Monarchies of Europe | 0 | - | 4.90 | 97,210 |
| Monarchies of Asia | 0 | - | 4.97 | 70,540 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,379 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,710,062 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,481 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,633 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,673 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,094 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,293 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,157 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,003 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,168 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,032 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,450 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,060 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,846 |
| Countries by Independence Day | 0 | - | 4.56 | 52,585 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,015 |
| Island Countries | 0 | - | 4.99 | 707,249 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,251 |
| Himalayan Countries | 0 | - | 4.95 | 135,066 |
| Andean Countries | 0 | - | 4.94 | 82,673 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,089 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,003 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,767 |
| Former Countries by Capital | 0 | - | 4.45 | 126,964 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,474 |
| Danube Countries | 0 | - | 4.97 | 71,004 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,639 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,460 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,295 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,205 |
| European Landlocked Countries | 0 | - | 4.99 | 145,671 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,057 |
| Countries with the Most Species | 0 | - | 4.99 | 95,190 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,204 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,175 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,334 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,910 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,514 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,871 |
| Countries in the Alps | 0 | - | 4.87 | 116,690 |
| Former Countries | 0 | - | 4.75 | 132,589 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,478 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,089 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,944 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,329 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,072 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,940 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,477 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,686 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,815 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,973 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,166 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,000 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,365 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,675 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,678 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,872 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,572 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,202 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,672 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,854 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,386 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,545 |
| Largest Countries By Category | 0 | - | 4.97 | 156,624 |
| Countries by Countries | 0 | - | 4.96 | 62,170 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,144 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,199 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,226 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,935 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,306 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,662 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,395 |
| Northernmost Countries | 0 | - | 4.99 | 357,267 |
| Political Movements by Country | 0 | - | 4.46 | 72,228 |
| Countries of South America | 0 | - | 5.00 | 913,436 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,702 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,288 |
| "Land" Countries | 0 | - | 4.98 | 333,430 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,047 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,128 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,041 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,606 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,044 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,124 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,540 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,108 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,872 |
| Countries with Megacities | 0 | - | 4.99 | 246,210 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,790 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,740 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,260 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,677 |
| Countries by Official Language | 0 | - | 4.95 | 192,591 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,882 |
| Countries in their Native Language | 0 | - | 4.99 | 196,479 |
| Subdivisions by Country | 0 | - | 4.86 | 50,034 |
| Megadiverse Countries | 0 | - | 4.97 | 133,834 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,657 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,876 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,373 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,836 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,548 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,063 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,179 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,715 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,390 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,366 |
| Hindu Countries | 0 | - | 4.85 | 49,447 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,431 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,447 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,608 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,979 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,358 |
| World Map Quiz | 0 | - | 4.81 | 63,360 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,227 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,223 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,410 |
| Countries by Road Signs | 0 | - | 4.98 | 52,977 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,160 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,880 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,855 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,516 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,773 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,967 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,174 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,881 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,259 |
| Widest Countries East to West | 0 | - | 4.92 | 128,525 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,191 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,083 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,520 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,627 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,520 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,950 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,032 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,552 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,636 |
| Countries with Double Letters | 0 | - | 4.97 | 93,222 |
| Countries that End in N | 0 | - | 4.94 | 156,289 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,496 |
| Countries with Six Letters | 0 | - | 4.93 | 210,197 |
| Countries with W | 0 | - | 4.97 | 158,102 |
| Countries with Z | 0 | - | 4.98 | 287,449 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,431 |
| Countries That End in U | 0 | - | 4.95 | 119,448 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,353 |
| Countries that End in O | 0 | - | 4.92 | 158,479 |
| Countries that End in R | 0 | - | 4.86 | 118,206 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,812 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,866 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,187 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,383 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,569 |
| Countries That End in Y | 0 | - | 4.90 | 185,155 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,178 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,554 |
| Countries that End in I | 0 | - | 4.94 | 134,316 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,023 |
