| Independence from Whom | 0 | - | 4.99 | 209,808 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,840 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,033 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,118 |
| Countries by Founding Story | 0 | - | 4.95 | 76,588 |
| Recently Independent Countries | 0 | - | 4.98 | 158,044 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,600 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,319 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,028 |
| Countries by Former Name | 0 | - | 4.99 | 124,352 |
| Historical City to Country | 0 | - | 4.84 | 78,163 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,956,125 |
| Landlocked Countries | 0 | - | 4.99 | 414,030 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,337 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,380 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,342 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,680 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,623 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,874 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,292 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,886 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,287 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,621 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,794 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,720,621 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,660 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,767 |
| Himalayan Countries | 0 | - | 4.95 | 135,506 |
| Andean Countries | 0 | - | 4.94 | 82,902 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,284 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,299 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,974 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,660 |
| Danube Countries | 0 | - | 4.97 | 71,120 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,821 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,582 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,576 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,481 |
| European Landlocked Countries | 0 | - | 4.99 | 145,804 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,273 |
| Countries with the Most Species | 0 | - | 4.99 | 95,268 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,415 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,214 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,384 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,981 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,605 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,986 |
| Countries in the Alps | 0 | - | 4.86 | 116,903 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,615 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,340 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,046 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,464 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,226 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,045 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,625 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,798 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,461 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,107 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,207 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,069 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,482 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,795 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,784 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,159 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,691 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,282 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,835 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,534 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,822 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,628 |
| Largest Countries By Category | 0 | - | 4.97 | 156,840 |
| Countries by Countries | 0 | - | 4.96 | 62,302 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,129 |
| Battle to Country | 0 | - | 4.91 | 52,578 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,472 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,978 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,345 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,814 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,601 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,278 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,096 |
| Island Countries | 0 | - | 4.99 | 707,779 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,363,516 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,070 |
| Northernmost Countries | 0 | - | 4.99 | 357,969 |
| Countries of South America | 0 | - | 5.00 | 915,543 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,534 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,000 |
| "Land" Countries | 0 | - | 4.98 | 333,759 |
| Countries by Independence Day | 0 | - | 4.56 | 52,624 |
| Former Countries by Capital | 0 | - | 4.45 | 127,078 |
| Former Countries | 0 | - | 4.75 | 132,750 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,023 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,862 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,850 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,527 |
| Countries with Megacities | 0 | - | 4.99 | 247,381 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,345 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,135 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,772 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,052 |
| Countries by Official Language | 0 | - | 4.95 | 192,865 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,256 |
| Countries in their Native Language | 0 | - | 4.99 | 196,723 |
| Subdivisions by Country | 0 | - | 4.86 | 50,088 |
| Megadiverse Countries | 0 | - | 4.97 | 133,944 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,894 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,938 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,448 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,871 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,722 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,191 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,234 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,755 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,675 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,444 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,526 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,524 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,713 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,045 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,694 |
| World Map Quiz | 0 | - | 4.81 | 63,578 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,929 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,381 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,450 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,147 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,995 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,894 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,912 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,104 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,316 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,971 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,365 |
| Widest Countries East to West | 0 | - | 4.92 | 128,642 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,221 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,280 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,590 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,721 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,676 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,099 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,060 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,596 |
| Countries with Double Letters | 0 | - | 4.96 | 93,463 |
| Countries that End in N | 0 | - | 4.94 | 156,961 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,769 |
| Countries with Six Letters | 0 | - | 4.93 | 210,431 |
| Countries with W | 0 | - | 4.97 | 158,281 |
| Countries with Z | 0 | - | 4.98 | 287,975 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,609 |
| Countries That End in U | 0 | - | 4.95 | 119,541 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,662 |
| Countries that End in O | 0 | - | 4.92 | 158,585 |
| Countries that End in R | 0 | - | 4.87 | 118,298 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,875 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,170 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,393 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,538 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,078 |
| Countries That End in Y | 0 | - | 4.90 | 185,228 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,451 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,742 |
| Countries that End in I | 0 | - | 4.94 | 134,456 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,278 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,231 |
| Countries That End in NIA | 0 | - | 4.92 | 109,043 |
| Countries That End in BIA | 0 | - | 4.92 | 147,749 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,127 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,526 |
| Countries That End in RIA | 0 | - | 4.93 | 126,115 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,050 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,274 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,552 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,931 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,415 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,952 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,164 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,692 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,549 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,833 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,200 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,865 |
| Countries that End in L | 0 | - | 4.94 | 155,781 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,483 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,997 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,541 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,340 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,461 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,351 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,261 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 132,982 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,336 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,594 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,659 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,685 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,183 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,435 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,352 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,802,965 |
| One Border Countries | 0 | - | 4.98 | 464,730 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,590,048 |
