| Independence from Whom | 0 | - | 4.99 | 209,844 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,868 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,040 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,156 |
| Battle to Country | 0 | - | 4.91 | 52,587 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,966,041 |
| Recently Independent Countries | 0 | - | 4.98 | 158,063 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,629 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,350 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,389 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,422 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,313 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,151 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,067 |
| Countries by Former Name | 0 | - | 4.99 | 124,371 |
| Historical City to Country | 0 | - | 4.84 | 78,172 |
| Landlocked Countries | 0 | - | 4.99 | 414,189 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,145 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,216 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,235 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,165 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,365 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,396 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,350 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,693 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,632 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,886 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,306 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,908 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,579 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,292 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,003 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,806 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,721,618 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,815 |
| Himalayan Countries | 0 | - | 4.95 | 135,543 |
| Andean Countries | 0 | - | 4.94 | 82,937 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,299 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,335 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,001 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,673 |
| Countries in World War I | 0 | - | 4.88 | 226,718 |
| Danube Countries | 0 | - | 4.97 | 71,129 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,832 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,595 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,602 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,515 |
| European Landlocked Countries | 0 | - | 4.99 | 145,827 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,295 |
| Countries with the Most Species | 0 | - | 4.99 | 95,278 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,519 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,434 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,216 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,386 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,988 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,616 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,996 |
| Countries in the Alps | 0 | - | 4.86 | 116,918 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,633 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,361 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,058 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,470 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,241 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,051 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,646 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,809 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,503 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,113 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,214 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,074 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,492 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,801 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,791 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,185 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,701 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,287 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,851 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,593 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,865 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,636 |
| Largest Countries By Category | 0 | - | 4.97 | 156,855 |
| Countries by Countries | 0 | - | 4.96 | 62,316 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,981 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,824 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,717 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,342 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,147 |
| Island Countries | 0 | - | 4.99 | 707,832 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,239 |
| Northernmost Countries | 0 | - | 4.99 | 358,027 |
| Countries of South America | 0 | - | 5.00 | 915,797 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,812 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,369 |
| "Land" Countries | 0 | - | 4.98 | 333,796 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,674 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,752 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,148 |
| Orthodox Countries | 0 | - | 4.91 | 130,475 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,363,946 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,151 |
| Monarchies of Europe | 0 | - | 4.90 | 97,393 |
| Monarchies of Asia | 0 | - | 4.97 | 70,645 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,465 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,689 |
| Countries by Independence Day | 0 | - | 4.56 | 52,626 |
| Former Countries by Capital | 0 | - | 4.45 | 127,087 |
| Former Countries | 0 | - | 4.75 | 132,762 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,566 |
| Countries with Megacities | 0 | - | 4.99 | 247,456 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,410 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,165 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,820 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,083 |
| Countries by Official Language | 0 | - | 4.95 | 192,896 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,299 |
| Countries in their Native Language | 0 | - | 4.99 | 196,749 |
| Subdivisions by Country | 0 | - | 4.86 | 50,094 |
| Megadiverse Countries | 0 | - | 4.97 | 133,950 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,923 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,947 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,458 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,871 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,737 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,052 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,203 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,242 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,757 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,708 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,449 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,537 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,530 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,719 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,050 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,739 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,398 |
| Communist Countries in History | 0 | - | 4.63 | 492,810 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,474 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,230 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,007 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,930 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,923 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,116 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,329 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,979 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,374 |
| Widest Countries East to West | 0 | - | 4.92 | 128,661 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,224 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,300 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,594 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,730 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,682 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,106 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,064 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,600 |
| Countries with Double Letters | 0 | - | 4.96 | 93,486 |
| Countries that End in N | 0 | - | 4.94 | 156,976 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,792 |
| Countries with Six Letters | 0 | - | 4.93 | 210,458 |
| Countries with W | 0 | - | 4.97 | 158,296 |
| Countries with Z | 0 | - | 4.98 | 288,002 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,619 |
| Countries That End in U | 0 | - | 4.95 | 119,549 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,686 |
| Countries that End in O | 0 | - | 4.92 | 158,590 |
| Countries that End in R | 0 | - | 4.87 | 118,303 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,880 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,198 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,413 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,551 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,089 |
| Countries That End in Y | 0 | - | 4.90 | 185,235 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,468 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,768 |
| Countries that End in I | 0 | - | 4.94 | 134,465 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,296 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,236 |
| Countries That End in NIA | 0 | - | 4.92 | 109,053 |
| Countries That End in BIA | 0 | - | 4.92 | 147,764 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,139 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,543 |
| Countries That End in RIA | 0 | - | 4.93 | 126,124 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,068 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,297 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,559 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,939 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,432 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,959 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,178 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,704 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,567 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,839 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,876 |
| Countries that End in L | 0 | - | 4.94 | 155,793 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,560 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,998 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,554 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,348 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,464 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,517 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,351 |
