| Independence from Whom | 0 | - | 4.99 | 211,357 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,736 |
| Countries in World War I | 0 | - | 4.88 | 227,870 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,750 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,393 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,002 |
| Battle to Country | 0 | - | 4.91 | 53,182 |
| Recently Independent Countries | 0 | - | 4.98 | 159,039 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,619 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,808 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,448 |
| Countries by Former Name | 0 | - | 4.99 | 124,938 |
| Historical City to Country | 0 | - | 4.84 | 78,446 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,346,690 |
| Communist Countries in History | 0 | - | 4.63 | 495,039 |
| Landlocked Countries | 0 | - | 4.99 | 419,141 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,422 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,127 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,101 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,548 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,175 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,456 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,100 |
| Countries in World War II | 0 | - | 4.54 | 911,166 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,298 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,857 |
| Hindu Countries | 0 | - | 4.86 | 50,025 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,456 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,932 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,511 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,757,830 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,606 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,065 |
| Himalayan Countries | 0 | - | 4.94 | 137,504 |
| Andean Countries | 0 | - | 4.95 | 83,978 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,251 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,720 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,869 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,374 |
| Danube Countries | 0 | - | 4.97 | 71,686 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,588 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,078 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,687 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,759 |
| European Landlocked Countries | 0 | - | 4.99 | 146,797 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,160 |
| Countries with the Most Species | 0 | - | 4.99 | 102,929 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,297 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,436 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,597 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,320 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,002 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,377 |
| Countries in the Alps | 0 | - | 4.87 | 117,712 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,155 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,401 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,433 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,016 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,125 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,711 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,302 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,206 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,977 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,571 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,496 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,346 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,946 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,202 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,224 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,225 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,078 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,582 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,154 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,553 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,463 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,266 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,011 |
| Largest Countries By Category | 0 | - | 4.97 | 157,666 |
| Orthodox Countries | 0 | - | 4.92 | 131,367 |
| Countries by Countries | 0 | - | 4.96 | 62,855 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,686 |
| Monarchies of Europe | 0 | - | 4.90 | 97,987 |
| Monarchies of Asia | 0 | - | 4.97 | 70,998 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,168 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,339 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,790 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,518 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,876 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,141 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,655 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,192 |
| Island Countries | 0 | - | 4.99 | 709,833 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,376,093 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,242 |
| Northernmost Countries | 0 | - | 4.99 | 360,556 |
| Countries of South America | 0 | - | 5.00 | 923,125 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,340 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,893 |
| "Land" Countries | 0 | - | 4.98 | 335,834 |
| Countries by Independence Day | 0 | - | 4.61 | 52,715 |
| Former Countries by Capital | 0 | - | 4.45 | 127,373 |
| Former Countries | 0 | - | 4.75 | 133,649 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,780 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,068 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,488 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,089 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,419 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 132,750 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,992 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,969 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,827 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,880 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,546 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,793 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,080 |
| Countries with Megacities | 0 | - | 4.99 | 260,891 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,936 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,020 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,214 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,034 |
| Countries by Official Language | 0 | - | 4.95 | 194,665 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,580 |
| Countries in their Native Language | 0 | - | 4.99 | 198,216 |
| Subdivisions by Country | 0 | - | 4.86 | 50,294 |
| Megadiverse Countries | 0 | - | 4.96 | 134,781 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,570 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,191 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,762 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,023 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,727 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,852 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,492 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,996 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,028 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,726 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,824 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,004 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,790 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,164 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,333 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,245 |
| World Map Quiz | 0 | - | 4.81 | 64,565 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,050 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,540 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,942 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,660 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,372 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,534 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,688 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,843 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,273 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,299 |
| Widest Countries East to West | 0 | - | 4.92 | 129,391 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,387 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,975 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,998 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,522 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,236 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,564 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,243 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,729 |
| Political Movements by Country | 0 | - | 4.46 | 72,473 |
| Countries with Double Letters | 0 | - | 4.97 | 95,118 |
| Countries that End in N | 0 | - | 4.95 | 170,045 |
| Countries with Five Letters | 0 | - | 4.96 | 280,394 |
| Countries with Six Letters | 0 | - | 4.94 | 212,518 |
| Countries with W | 0 | - | 4.97 | 159,536 |
| Countries with Z | 0 | - | 4.98 | 289,846 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,767 |
| Countries That End in U | 0 | - | 4.95 | 120,420 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,776 |
| Countries that End in O | 0 | - | 4.92 | 159,209 |
| Countries that End in R | 0 | - | 4.87 | 118,740 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,518 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,361 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,131 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,096 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,680 |
| Countries That End in Y | 0 | - | 4.90 | 185,653 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,250 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,447 |
| Countries that End in I | 0 | - | 4.94 | 134,877 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,109 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,585 |
| Countries That End in NIA | 0 | - | 4.92 | 109,523 |
| Countries That End in BIA | 0 | - | 4.93 | 148,860 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,743 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,074 |
| Countries That End in RIA | 0 | - | 4.93 | 126,548 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,651 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,744 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,255 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,622 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,146 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,339 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,692 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,255 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,148 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,207 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,558 |
