| Battle to Country | 0 | - | 4.91 | 52,994 |
| Independence from Whom | 0 | - | 4.99 | 210,969 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,441 |
| Countries in World War I | 0 | - | 4.88 | 227,564 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,423 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,271 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,698 |
| Recently Independent Countries | 0 | - | 4.98 | 158,455 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,262 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,299 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,993 |
| Countries by Former Name | 0 | - | 4.99 | 124,743 |
| Historical City to Country | 0 | - | 4.84 | 78,362 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,210,274 |
| Landlocked Countries | 0 | - | 4.99 | 417,244 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,054 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,902 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 75,903 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 90,898 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,017 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,290 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,880 |
| Countries in World War II | 0 | - | 4.54 | 909,130 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,147 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,441 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,403 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,614 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,269 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,745,111 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,404 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,212 |
| Himalayan Countries | 0 | - | 4.95 | 136,752 |
| Andean Countries | 0 | - | 4.95 | 83,598 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,860 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,161 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,524 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,123 |
| Danube Countries | 0 | - | 4.97 | 71,486 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,298 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,902 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,295 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,290 |
| European Landlocked Countries | 0 | - | 4.99 | 146,193 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,873 |
| Countries with the Most Species | 0 | - | 4.99 | 102,370 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,000 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,355 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,535 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,204 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,856 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,234 |
| Countries in the Alps | 0 | - | 4.86 | 117,431 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,963 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,038 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,305 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,803 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,899 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,321 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,071 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,042 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,860 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,392 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,397 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,239 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,787 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,050 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,061 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,837 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,941 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,467 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,763 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,307 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,343 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,743 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,873 |
| Largest Countries By Category | 0 | - | 4.97 | 157,355 |
| Orthodox Countries | 0 | - | 4.92 | 131,038 |
| Countries by Countries | 0 | - | 4.96 | 62,666 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,477 |
| Monarchies of Europe | 0 | - | 4.90 | 97,767 |
| Monarchies of Asia | 0 | - | 4.97 | 70,876 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,951 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,107 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,142 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,683 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,200 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,529 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,086 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,204 |
| Island Countries | 0 | - | 4.99 | 709,084 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,983 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,096 |
| Northernmost Countries | 0 | - | 4.99 | 359,703 |
| Countries of South America | 0 | - | 5.00 | 920,508 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,075 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,806 |
| "Land" Countries | 0 | - | 4.98 | 335,158 |
| Countries by Independence Day | 0 | - | 4.61 | 52,690 |
| Former Countries by Capital | 0 | - | 4.45 | 127,274 |
| Former Countries | 0 | - | 4.75 | 133,024 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,519 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,234 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,842 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 120,125 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,526 |
| Communist Countries in History | 0 | - | 4.63 | 494,205 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,705 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,578 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,720 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,871 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,090 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,481 |
| Countries with Megacities | 0 | - | 4.99 | 249,407 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,333 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,663 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,660 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,637 |
| Countries by Official Language | 0 | - | 4.95 | 194,231 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,047 |
| Countries in their Native Language | 0 | - | 4.99 | 197,829 |
| Subdivisions by Country | 0 | - | 4.86 | 50,223 |
| Megadiverse Countries | 0 | - | 4.96 | 134,600 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,991 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,106 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,660 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,963 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,513 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,594 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,405 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,820 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,465 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,616 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,713 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,685 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,892 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,248 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,740 |
| World Map Quiz | 0 | - | 4.81 | 64,221 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,703 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,770 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,182 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,737 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,470 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,880 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,343 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,521 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,683 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,178 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,100 |
| Widest Countries East to West | 0 | - | 4.92 | 129,218 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,341 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,735 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,946 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,995 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,044 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,415 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,154 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,691 |
| Political Movements by Country | 0 | - | 4.46 | 72,413 |
| Countries with Double Letters | 0 | - | 4.96 | 94,542 |
| Countries that End in N | 0 | - | 4.95 | 168,602 |
| Countries with Five Letters | 0 | - | 4.96 | 272,218 |
| Countries with Six Letters | 0 | - | 4.93 | 211,801 |
| Countries with W | 0 | - | 4.97 | 159,138 |
| Countries with Z | 0 | - | 4.98 | 289,221 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,333 |
| Countries That End in U | 0 | - | 4.95 | 120,182 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,368 |
| Countries that End in O | 0 | - | 4.92 | 159,020 |
| Countries that End in R | 0 | - | 4.87 | 118,604 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,381 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,953 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,871 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,904 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,489 |
| Countries That End in Y | 0 | - | 4.90 | 185,513 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,972 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,191 |
| Countries that End in I | 0 | - | 4.94 | 134,730 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,800 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,460 |
| Countries That End in NIA | 0 | - | 4.92 | 109,352 |
| Countries That End in BIA | 0 | - | 4.93 | 148,645 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,508 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,857 |
| Countries That End in RIA | 0 | - | 4.93 | 126,395 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,439 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,239 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,963 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,290 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,917 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,196 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,518 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,044 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,921 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,089 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,317 |
| Countries that End in L | 0 | - | 4.94 | 156,372 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,230 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,102 |
