| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,127 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,309 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,169 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,019 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,053 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,134 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,062 |
| Countries in World War I | 0 | - | 4.88 | 226,415 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,269 |
| Battle to Country | 0 | - | 4.91 | 52,454 |
| Independence from Whom | 0 | - | 4.99 | 209,525 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,606 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,946 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,618 |
| Recently Independent Countries | 0 | - | 4.98 | 157,889 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,351 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,951 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,635 |
| Communist Countries in History | 0 | - | 4.63 | 492,164 |
| Countries by Former Name | 0 | - | 4.99 | 124,179 |
| Historical City to Country | 0 | - | 4.84 | 78,091 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,055 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,865,836 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,085 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,188 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,194 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,533 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,499 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,736 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,130 |
| Countries in World War II | 0 | - | 4.53 | 903,655 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,768 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,293 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,246 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,824 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,634 |
| Landlocked Countries | 0 | - | 4.99 | 413,018 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,711,098 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,494 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,658 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,909 |
| Orthodox Countries | 0 | - | 4.91 | 130,279 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,934 |
| Monarchies of Europe | 0 | - | 4.90 | 97,230 |
| Monarchies of Asia | 0 | - | 4.97 | 70,546 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,389 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,498 |
| Top 10 Richest Countries in Asia | 0 | - | 4.73 | 104,732 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,212 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,887 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,085 |
| Island Countries | 0 | - | 4.99 | 707,322 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,322 |
| Himalayan Countries | 0 | - | 4.95 | 135,120 |
| Andean Countries | 0 | - | 4.94 | 82,697 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,117 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,037 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,796 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,500 |
| Danube Countries | 0 | - | 4.97 | 71,015 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,669 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,472 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,327 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,242 |
| European Landlocked Countries | 0 | - | 4.99 | 145,685 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,080 |
| Countries with the Most Species | 0 | - | 4.99 | 95,204 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,237 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,180 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,339 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,916 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,532 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,889 |
| Countries in the Alps | 0 | - | 4.87 | 116,716 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,497 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,118 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,957 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,344 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,079 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,944 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,494 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,699 |
| Largest Country by Body of Water | 0 | - | 4.95 | 56,590 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,990 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,171 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,006 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,388 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,693 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,691 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,924 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,582 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,210 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,705 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,927 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,422 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,554 |
| Largest Countries By Category | 0 | - | 4.97 | 156,654 |
| Countries by Countries | 0 | - | 4.96 | 62,189 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,544 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,939 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,679 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,585 |
| Northernmost Countries | 0 | - | 4.99 | 357,349 |
| Countries of South America | 0 | - | 5.00 | 913,660 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,016 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,804 |
| "Land" Countries | 0 | - | 4.98 | 333,466 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,961 |
| Countries by Independence Day | 0 | - | 4.56 | 52,586 |
| Former Countries by Capital | 0 | - | 4.45 | 126,977 |
| Former Countries | 0 | - | 4.75 | 132,602 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,689 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,698 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,251 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,183 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,049 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,457 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,814 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,284 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,908 |
| Countries with Megacities | 0 | - | 4.99 | 246,302 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,831 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,754 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,287 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,695 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,155 |
| Countries by Official Language | 0 | - | 4.95 | 192,620 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,929 |
| Countries in their Native Language | 0 | - | 4.99 | 196,502 |
| Subdivisions by Country | 0 | - | 4.86 | 50,038 |
| Megadiverse Countries | 0 | - | 4.97 | 133,841 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,677 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,883 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,381 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,844 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,566 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,076 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,186 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,721 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,429 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,374 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,448 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,462 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,620 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,987 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,390 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,209 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,239 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,197 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,902 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,869 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,550 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,788 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,987 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,192 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,891 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,279 |
| Widest Countries East to West | 0 | - | 4.92 | 128,543 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,196 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,108 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,531 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,636 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,535 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,965 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,036 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,554 |
| Political Movements by Country | 0 | - | 4.46 | 72,234 |
| Countries with Double Letters | 0 | - | 4.97 | 93,251 |
| Countries that End in N | 0 | - | 4.94 | 156,320 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,528 |
| Countries with Six Letters | 0 | - | 4.93 | 210,227 |
| Countries with W | 0 | - | 4.97 | 158,130 |
| Countries with Z | 0 | - | 4.98 | 287,646 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,450 |
| Countries That End in U | 0 | - | 4.95 | 119,460 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,391 |
| Countries that End in O | 0 | - | 4.92 | 158,493 |
| Countries that End in R | 0 | - | 4.86 | 118,215 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,819 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,895 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,199 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,403 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,589 |
| Countries That End in Y | 0 | - | 4.90 | 185,164 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,204 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,575 |
| Countries that End in I | 0 | - | 4.94 | 134,326 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,046 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,152 |
| Countries That End in NIA | 0 | - | 4.92 | 108,944 |
| Countries That End in BIA | 0 | - | 4.92 | 147,631 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 165,997 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,424 |
| Countries That End in RIA | 0 | - | 4.93 | 126,029 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,933 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,021 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,458 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,839 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,277 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,879 |
