| Independence from Whom | 0 | - | 4.99 | 210,061 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,997 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,104 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,283 |
| Countries by Founding Story | 0 | - | 4.95 | 76,684 |
| Landlocked Countries | 0 | - | 4.99 | 414,999 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,029,245 |
| Recently Independent Countries | 0 | - | 4.98 | 158,159 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,779 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,558 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,310 |
| Countries by Former Name | 0 | - | 4.99 | 124,473 |
| Historical City to Country | 0 | - | 4.84 | 78,219 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,154 |
| Himalayan Countries | 0 | - | 4.95 | 135,854 |
| Andean Countries | 0 | - | 4.94 | 83,102 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,427 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,539 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,133 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,787 |
| Danube Countries | 0 | - | 4.97 | 71,232 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,955 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,673 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,786 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,702 |
| European Landlocked Countries | 0 | - | 4.99 | 145,931 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,454 |
| Countries with the Most Species | 0 | - | 4.99 | 95,319 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,594 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,252 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,426 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,042 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,694 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,053 |
| Countries in the Alps | 0 | - | 4.86 | 117,065 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,718 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,523 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,138 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,555 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,335 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,118 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,748 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,873 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,656 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,181 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,257 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,124 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,585 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,855 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,866 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,372 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,771 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,335 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,980 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,075 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,099 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,704 |
| Largest Countries By Category | 0 | - | 4.97 | 156,974 |
| Countries by Countries | 0 | - | 4.96 | 62,410 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,605 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,009 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,371 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,186 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,249 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,907 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,727,952 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,515 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,489 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,410 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,768 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,676 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,927 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,379 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,970 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,315 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,922 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,919 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,984 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,551 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,622 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,576 |
| Island Countries | 0 | - | 4.99 | 708,169 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,299 |
| Northernmost Countries | 0 | - | 4.99 | 358,516 |
| Countries of South America | 0 | - | 5.00 | 917,281 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,418 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,100 |
| "Land" Countries | 0 | - | 4.98 | 334,013 |
| Former Countries by Capital | 0 | - | 4.45 | 127,152 |
| Former Countries | 0 | - | 4.75 | 132,834 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,035 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,807 |
| Countries with Megacities | 0 | - | 4.99 | 247,992 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,685 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,297 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,060 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,248 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,760 |
| Countries by Official Language | 0 | - | 4.95 | 193,075 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,565 |
| Countries in their Native Language | 0 | - | 4.99 | 196,923 |
| Subdivisions by Country | 0 | - | 4.86 | 50,127 |
| Megadiverse Countries | 0 | - | 4.97 | 134,098 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,085 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,995 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,512 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,897 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,834 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,363 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,278 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,776 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,838 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,489 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,597 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,572 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,769 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,108 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,019 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,246 |
| Battle to Country | 0 | - | 4.91 | 52,660 |
| World Map Quiz | 0 | - | 4.81 | 63,733 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,443 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,528 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,323 |
| Countries by Road Signs | 0 | - | 4.98 | 53,250 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,718 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,469 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,201 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,212 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,073 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,280 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,467 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,053 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,503 |
| Widest Countries East to West | 0 | - | 4.92 | 128,995 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,278 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,431 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,636 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,836 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,784 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,196 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 76,245 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,632 |
| Countries with Double Letters | 0 | - | 4.96 | 93,637 |
| Countries that End in N | 0 | - | 4.94 | 157,102 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,973 |
| Countries with Six Letters | 0 | - | 4.93 | 210,635 |
| Countries with W | 0 | - | 4.97 | 158,397 |
| Countries with Z | 0 | - | 4.98 | 288,184 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,724 |
| Countries That End in U | 0 | - | 4.95 | 119,596 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,839 |
| Countries that End in O | 0 | - | 4.92 | 158,636 |
| Countries that End in R | 0 | - | 4.87 | 118,359 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,921 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,368 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,512 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,624 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,170 |
| Countries That End in Y | 0 | - | 4.90 | 185,276 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,578 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,869 |
| Countries that End in I | 0 | - | 4.94 | 134,523 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,424 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,283 |
| Countries That End in NIA | 0 | - | 4.92 | 109,105 |
| Countries That End in BIA | 0 | - | 4.92 | 147,836 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,226 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,617 |
| Countries That End in RIA | 0 | - | 4.93 | 126,181 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,151 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,637 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,646 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,002 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,539 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,015 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,265 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,769 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,661 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,880 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,308 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,967 |
| Countries that End in L | 0 | - | 4.94 | 156,141 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,971 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,018 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,608 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,426 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,505 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,886 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,590 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,441 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,611 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,975 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,891 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,801 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,232 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,457 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,402 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,417 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,225 |
