| Countries of the World in 1444 | 0 | - | 4.98 | 59,961 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,182 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,516 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,279 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,330 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,011 |
| Independence from Whom | 0 | - | 4.99 | 210,988 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,459 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,278 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,713 |
| Countries by Founding Story | 0 | - | 4.95 | 76,939 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,816,391 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,648 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,565 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,607,472 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.74 | 45,351 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.77 | 33,215 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,217,208 |
| Recently Independent Countries | 0 | - | 4.98 | 158,476 |
| Countries by Former Name | 0 | - | 4.99 | 124,751 |
| Historical City to Country | 0 | - | 4.84 | 78,365 |
| Landlocked Countries | 0 | - | 4.99 | 417,323 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 563,754 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,984 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,072 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,923 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 75,926 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 91,199 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,033 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,300 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,900 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,155 |
| Pixelated World Map | 0 | - | 5.00 | 142,964 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,408 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,491 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,745,787 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,743 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,242 |
| Himalayan Countries | 0 | - | 4.95 | 136,779 |
| Andean Countries | 0 | - | 4.95 | 83,614 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,873 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,174 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,544 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,135 |
| Danube Countries | 0 | - | 4.97 | 71,488 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,318 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,910 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,314 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,312 |
| European Landlocked Countries | 0 | - | 4.99 | 146,200 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,889 |
| Countries with the Most Species | 0 | - | 4.99 | 102,423 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,015 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,358 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,537 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,205 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,860 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,238 |
| Countries in the Alps | 0 | - | 4.86 | 117,442 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,969 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,054 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,308 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,812 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,908 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,325 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,077 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,048 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,867 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,399 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,401 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,244 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,792 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,055 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,068 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,857 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,943 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,473 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,311 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,411 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,767 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,879 |
| Largest Countries By Category | 0 | - | 4.97 | 157,366 |
| Countries by Countries | 0 | - | 4.96 | 62,677 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,963 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,109 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,426 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,984 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,466 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,155 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,623 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,130 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,264 |
| Island Countries | 0 | - | 4.99 | 709,115 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,224 |
| Northernmost Countries | 0 | - | 4.99 | 359,752 |
| Countries of South America | 0 | - | 5.00 | 920,634 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,276 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,861,110 |
| "Land" Countries | 0 | - | 4.98 | 335,236 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,419 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,171 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,796 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,490 |
| Battle to Country | 0 | - | 4.91 | 53,000 |
| Countries by Independence Day | 0 | - | 4.61 | 52,692 |
| Former Countries by Capital | 0 | - | 4.45 | 127,282 |
| Former Countries | 0 | - | 4.75 | 133,029 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,511 |
| Countries with Megacities | 0 | - | 4.99 | 249,464 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,356 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,683 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,691 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,648 |
| Countries by Official Language | 0 | - | 4.95 | 194,267 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,091 |
| Countries in their Native Language | 0 | - | 4.99 | 197,862 |
| Subdivisions by Country | 0 | - | 4.86 | 50,227 |
| Megadiverse Countries | 0 | - | 4.96 | 134,611 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,023 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,110 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,667 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,966 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,521 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,535 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,613 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,411 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,822 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,490 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,624 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,719 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,687 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,895 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,252 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,191 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,761 |
| World Map Quiz | 0 | - | 4.81 | 64,236 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 136,679 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,750 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,782 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,590 |
| Countries by Road Signs | 0 | - | 4.98 | 53,491 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,194 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,746 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,481 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,908 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,356 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,526 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,694 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,187 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,160 |
| Widest Countries East to West | 0 | - | 4.92 | 129,230 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,343 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,745 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,947 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,054 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,054 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,424 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,163 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,691 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,720 |
| Countries with Double Letters | 0 | - | 4.97 | 94,639 |
| Countries that End in N | 0 | - | 4.95 | 168,806 |
| Countries with Five Letters | 0 | - | 4.96 | 274,083 |
| Countries with Six Letters | 0 | - | 4.94 | 211,918 |
| Countries with W | 0 | - | 4.97 | 159,191 |
| Countries with Z | 0 | - | 4.98 | 289,308 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,393 |
| Countries That End in U | 0 | - | 4.95 | 120,228 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,417 |
| Countries that End in O | 0 | - | 4.92 | 159,043 |
| Countries that End in R | 0 | - | 4.87 | 118,618 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,393 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,990 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,892 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,921 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,504 |
| Countries That End in Y | 0 | - | 4.90 | 185,527 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,986 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,204 |
| Countries that End in I | 0 | - | 4.94 | 134,737 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,817 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,466 |
| Countries That End in NIA | 0 | - | 4.92 | 109,377 |
| Countries That End in BIA | 0 | - | 4.93 | 148,658 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,523 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,878 |
| Countries That End in RIA | 0 | - | 4.93 | 126,406 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,452 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,262 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,976 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,303 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,933 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,211 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,533 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,057 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,937 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,094 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,636 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,330 |
| Countries that End in L | 0 | - | 4.94 | 156,384 |
