| "Land" Countries | 0 | - | 4.98 | 334,272 |
| Countries with Double Letters | 0 | - | 4.96 | 93,817 |
| Countries that End in N | 0 | - | 4.94 | 157,251 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,210 |
| Countries with Six Letters | 0 | - | 4.93 | 210,848 |
| Countries with W | 0 | - | 4.97 | 158,503 |
| Countries with Z | 0 | - | 4.98 | 288,398 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,854 |
| Countries That End in U | 0 | - | 4.95 | 119,665 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,000 |
| Countries that End in O | 0 | - | 4.92 | 158,696 |
| Countries that End in R | 0 | - | 4.87 | 118,414 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,967 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,565 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,633 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,719 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,287 |
| Countries That End in Y | 0 | - | 4.90 | 185,324 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,737 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,997 |
| Countries that End in I | 0 | - | 4.94 | 134,594 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,594 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,355 |
| Countries That End in NIA | 0 | - | 4.92 | 109,221 |
| Countries That End in BIA | 0 | - | 4.93 | 148,455 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,339 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,703 |
| Countries That End in RIA | 0 | - | 4.93 | 126,258 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,249 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,916 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,766 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,124 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,672 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,072 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,357 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,876 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,763 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,942 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,430 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,096 |
| Countries that End in L | 0 | - | 4.94 | 156,207 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,548 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,037 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,113,496 |
| Landlocked Countries | 0 | - | 4.99 | 416,005 |
| Countries with Four Letters | 0 | - | 4.99 | 419,968 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,736,097 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,597 |
| Himalayan Countries | 0 | - | 4.95 | 136,224 |
| Andean Countries | 0 | - | 4.95 | 83,312 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,597 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,811 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,301 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,922 |
| Danube Countries | 0 | - | 4.97 | 71,332 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,110 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,785 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,014 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,969 |
| European Landlocked Countries | 0 | - | 4.99 | 146,044 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,657 |
| Countries with the Most Species | 0 | - | 4.99 | 97,027 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,795 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,296 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,471 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,111 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,759 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,128 |
| Countries in the Alps | 0 | - | 4.86 | 117,247 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,836 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,745 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,209 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,662 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,535 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,203 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,903 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,947 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,749 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,281 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,322 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,181 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,673 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,936 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,942 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,606 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,849 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,384 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,128 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,658 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,408 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,779 |
| Largest Countries By Category | 0 | - | 4.97 | 157,170 |
| Countries by Countries | 0 | - | 4.96 | 62,526 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,783 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,059 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,397 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,524 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,351 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,031 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,238 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,746 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,381 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,523 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,228 |
| Island Countries | 0 | - | 4.99 | 708,592 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,611 |
| Northernmost Countries | 0 | - | 4.99 | 359,059 |
| Countries of South America | 0 | - | 5.00 | 918,783 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,591 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,532 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,861 |
| Countries with J | 0 | - | 4.54 | 184,536 |
| Countries by Consonants | 0 | - | 4.42 | 78,353 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,113 |
| Countries with Megacities | 0 | - | 4.99 | 248,617 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,984 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,458 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,361 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,412 |
| Countries by Official Language | 0 | - | 4.95 | 193,778 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,270 |
| Countries in their Native Language | 0 | - | 4.99 | 197,433 |
| Independence from Whom | 0 | - | 4.99 | 210,394 |
| Subdivisions by Country | 0 | - | 4.86 | 50,169 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,213 |
| Megadiverse Countries | 0 | - | 4.96 | 134,497 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,637 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,054 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,592 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,934 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,066 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,175 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,471 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,503 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,333 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,795 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,065 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,555 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,650 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,622 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,825 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,162 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,345 |
| World Map Quiz | 0 | - | 4.81 | 63,936 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,034 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,648 |
| Countries by Founding Story | 0 | - | 4.95 | 76,812 |
| Countries by Road Signs | 0 | - | 4.98 | 53,343 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,946 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,605 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,324 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,535 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,190 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,389 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,570 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,111 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,593 |
| Widest Countries East to West | 0 | - | 4.92 | 129,093 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,306 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,574 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,724 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,917 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,917 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,301 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,978 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,657 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,677 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,510 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,575 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,181 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,730 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,124 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,750 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,171 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,995 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,851 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,272 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,488 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,473 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,016 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,615 |
| One Border Countries | 0 | - | 4.98 | 466,112 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,810,997 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,600,996 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,131 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,984 |
| Most Similar Country Names | 0 | - | 4.16 | 46,363 |
| Longest Country Name A-Z | 0 | - | 4.33 | 41,897 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,230 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,756 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,247 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,032 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,035 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,580 |
| Countries by National Anthem | 0 | - | 4.92 | 71,097 |
| NATO Countries | 0 | - | 4.98 | 277,675 |
| EU Countries Quiz | 0 | - | 4.99 | 271,273 |
| Recently Independent Countries | 0 | - | 4.98 | 158,302 |
| French-Speaking Countries | 0 | - | 4.85 | 269,591 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,470 |
