| Independence from Whom | 0 | - | 4.99 | 212,878 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,303 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,794 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,004 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,564 |
| National Founders | 0 | - | 4.40 | 83,951 |
| Recently Independent Countries | 0 | - | 4.98 | 159,924 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,829 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,565 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,991 |
| Countries by Former Name | 0 | - | 4.99 | 125,732 |
| Historical City to Country | 0 | - | 4.85 | 78,960 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,815,991 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,303 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,822 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,474 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,139 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,481 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,831 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,692 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,009 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,472 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,650 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,224 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,465 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,561 |
| Countries in a JetPunk Fish of the World Map | 0 | - | 4.99 | 60,637 |
| Countries in a Blue JetPunk Fish of the World Map | 0 | - | 4.92 | 72,321 |
| Political Movements by Country | 0 | - | 4.46 | 72,736 |
| Landlocked Countries | 0 | - | 4.99 | 424,903 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,314 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,798,889 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,097 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,187 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,406 |
| Battle to Country | 0 | - | 4.91 | 53,890 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,789 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,439 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,226 |
| Island Countries | 0 | - | 4.99 | 712,241 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,826 |
| Himalayan Countries | 0 | - | 4.93 | 139,914 |
| Andean Countries | 0 | - | 4.94 | 85,257 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,424 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,758 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,991 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,294 |
| Danube Countries | 0 | - | 4.97 | 72,302 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,461 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,745 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,933 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,431 |
| European Landlocked Countries | 0 | - | 4.99 | 147,503 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,153 |
| Countries with the Most Species | 0 | - | 4.99 | 103,510 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,291 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,726 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,838 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,775 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,508 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,939 |
| Countries in the Alps | 0 | - | 4.87 | 118,656 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,430 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,687 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,905 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,933 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,859 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,173 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,297 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,796 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,362 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,100 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,810 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,685 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,481 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,716 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,813 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,616 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,547 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,641 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,542 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,366 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,935 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,458 |
| Largest Countries By Category | 0 | - | 4.97 | 158,732 |
| Countries by Countries | 0 | - | 4.96 | 63,549 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 162,197 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,391,776 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,160 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,376 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,021 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,770 |
| Northernmost Countries | 0 | - | 4.99 | 363,615 |
| Countries of South America | 0 | - | 5.00 | 931,496 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,870 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,886,586 |
| "Land" Countries | 0 | - | 4.98 | 338,193 |
| Countries by Independence Day | 0 | - | 4.62 | 52,850 |
| Former Countries by Capital | 0 | - | 4.45 | 127,772 |
| Former Countries | 0 | - | 4.77 | 134,154 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,730 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,875 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,030 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,536 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,243 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,963 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 81,112 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 77,776 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 77,033 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 155,476 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 74,081 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 55,500 |
| Communist Countries in History | 0 | - | 4.63 | 497,819 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,917 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,177 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,934 |
| Countries with Megacities | 0 | - | 4.99 | 266,682 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,639 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,993 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,942 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,110 |
| Countries by Official Language | 0 | - | 4.95 | 195,849 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,440 |
| Countries in their Native Language | 0 | - | 4.99 | 199,622 |
| Subdivisions by Country | 0 | - | 4.87 | 50,581 |
| Megadiverse Countries | 0 | - | 4.96 | 135,220 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,834 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,499 |
| Countries of the Japanese Empire | 0 | - | 4.96 | 104,523 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,406 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,201 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,499 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,527 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,789 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,234 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,336 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,332 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,401 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,115 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,543 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,657 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,138 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,995 |
| World Map Quiz | 0 | - | 4.81 | 65,564 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,846 |
| Countries in an Empty Ring of the World Map | 0 | - | 4.92 | 127,186 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,627 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,231 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,315 |
| Country Picture Puzzle Game #1 | 0 | - | 4.86 | 86,830 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,084 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,988 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,474 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,357 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,328 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,453 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,655 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,643 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,442 |
| Widest Countries East to West | 0 | - | 4.92 | 130,370 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,576 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,163 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,486 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,004 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,903 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,398 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,475 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,876 |
| Countries with Double Letters | 0 | - | 4.96 | 96,910 |
| Countries that End in N | 0 | - | 4.94 | 171,786 |
| Countries with Five Letters | 0 | - | 4.96 | 283,544 |
| Countries with Six Letters | 0 | - | 4.94 | 214,267 |
| Countries with W | 0 | - | 4.96 | 160,825 |
| Countries with Z | 0 | - | 4.98 | 292,255 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,176 |
| Countries That End in U | 0 | - | 4.95 | 121,114 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,984 |
| Countries that End in O | 0 | - | 4.92 | 159,788 |
| Countries that End in R | 0 | - | 4.87 | 119,133 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,893 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,702 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,061 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,759 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,689 |
| Countries That End in Y | 0 | - | 4.91 | 186,049 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,354 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,189 |
| Countries that End in I | 0 | - | 4.94 | 135,271 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,518 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,009 |
| Countries That End in NIA | 0 | - | 4.92 | 109,995 |
| Countries That End in BIA | 0 | - | 4.93 | 149,518 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,440 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,705 |
| Countries That End in RIA | 0 | - | 4.93 | 127,016 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,310 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,412 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,081 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,523 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,094 |
