| Independence from Whom | 0 | - | 4.99 | 211,013 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,482 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,283 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,736 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,713 |
| Recently Independent Countries | 0 | - | 4.98 | 158,487 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,305 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,371 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,044 |
| Countries by Former Name | 0 | - | 4.99 | 124,768 |
| Historical City to Country | 0 | - | 4.84 | 78,368 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,225,781 |
| Landlocked Countries | 0 | - | 4.99 | 417,413 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,097 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,937 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 75,945 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 91,400 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,044 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,317 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,923 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,163 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,414 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,300 |
| Political Movements by Country | 0 | - | 4.46 | 72,417 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,746,770 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,310 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,431 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,283 |
| Himalayan Countries | 0 | - | 4.95 | 136,810 |
| Andean Countries | 0 | - | 4.95 | 83,630 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,885 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,207 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,559 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,153 |
| Danube Countries | 0 | - | 4.97 | 71,503 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,334 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,920 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,334 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,368 |
| European Landlocked Countries | 0 | - | 4.99 | 146,216 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,908 |
| Countries with the Most Species | 0 | - | 4.99 | 102,496 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,032 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,363 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,540 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,212 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,868 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,248 |
| Countries in the Alps | 0 | - | 4.86 | 117,457 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,980 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,073 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,319 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,828 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,923 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,334 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,092 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,056 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,873 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,412 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,412 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,249 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,802 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,070 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,079 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,880 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,954 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,481 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,324 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,500 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,809 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,885 |
| Largest Countries By Category | 0 | - | 4.97 | 157,391 |
| Countries by Countries | 0 | - | 4.96 | 62,684 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,498 |
| Battle to Country | 0 | - | 4.91 | 53,012 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,114 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,169 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,526 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,704 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,173 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,323 |
| Island Countries | 0 | - | 4.99 | 709,169 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,056 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,418 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,380 |
| Northernmost Countries | 0 | - | 4.99 | 359,814 |
| Countries of South America | 0 | - | 5.00 | 920,816 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,532 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,861,540 |
| "Land" Countries | 0 | - | 4.98 | 335,306 |
| Countries by Independence Day | 0 | - | 4.61 | 52,694 |
| Former Countries by Capital | 0 | - | 4.45 | 127,292 |
| Former Countries | 0 | - | 4.75 | 133,040 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,552 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,814 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,268 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,280 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,867 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 120,318 |
| Communist Countries in History | 0 | - | 4.63 | 494,329 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,178 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,174 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,545 |
| Countries with Megacities | 0 | - | 4.99 | 249,519 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,389 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,706 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,729 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,667 |
| Countries by Official Language | 0 | - | 4.95 | 194,310 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,135 |
| Countries in their Native Language | 0 | - | 4.99 | 197,904 |
| Subdivisions by Country | 0 | - | 4.86 | 50,234 |
| Megadiverse Countries | 0 | - | 4.96 | 134,638 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,051 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,120 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,676 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,971 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,535 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,653 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,417 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,824 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,519 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,630 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,730 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,692 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,907 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,252 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,787 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,821 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,221 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,762 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,490 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,944 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,372 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,541 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,702 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,191 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,171 |
| Widest Countries East to West | 0 | - | 4.92 | 129,242 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,345 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,762 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,951 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,210 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,064 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,434 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,165 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,696 |
| Countries with Double Letters | 0 | - | 4.97 | 94,703 |
| Countries that End in N | 0 | - | 4.95 | 168,984 |
| Countries with Five Letters | 0 | - | 4.96 | 275,182 |
| Countries with Six Letters | 0 | - | 4.94 | 211,987 |
| Countries with W | 0 | - | 4.97 | 159,228 |
| Countries with Z | 0 | - | 4.98 | 289,363 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,427 |
| Countries That End in U | 0 | - | 4.95 | 120,248 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,449 |
| Countries that End in O | 0 | - | 4.92 | 159,066 |
| Countries that End in R | 0 | - | 4.87 | 118,632 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,405 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,025 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,911 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,937 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,522 |
| Countries That End in Y | 0 | - | 4.90 | 185,542 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,011 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,232 |
| Countries that End in I | 0 | - | 4.94 | 134,752 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,835 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,477 |
| Countries That End in NIA | 0 | - | 4.92 | 109,393 |
| Countries That End in BIA | 0 | - | 4.93 | 148,676 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,543 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,896 |
| Countries That End in RIA | 0 | - | 4.93 | 126,417 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,474 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,307 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,999 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,320 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,952 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,224 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,548 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,079 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,954 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,106 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,342 |
| Countries that End in L | 0 | - | 4.94 | 156,403 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,358 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,122 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,761 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,627 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,682 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,474 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,914 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,458 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,911 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,372 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,113 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,893 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,317 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,549 |
