| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,251 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,269 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,941 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,419 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,810,059 |
| Landlocked Countries | 0 | - | 4.99 | 415,775 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 559,246 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,094,435 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,978 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,884 |
| All Countries by Northernmost Point on Land | 0 | - | 4.89 | 125,475 |
| 20 Countries on an Empty Map #1 | 0 | - | 4.94 | 62,004 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,585 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,488 |
| Himalayan Countries | 0 | - | 4.95 | 136,127 |
| Andean Countries | 0 | - | 4.95 | 83,249 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,560 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,744 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,256 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,889 |
| Danube Countries | 0 | - | 4.97 | 71,307 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,068 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,759 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,962 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,911 |
| European Landlocked Countries | 0 | - | 4.99 | 146,015 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,610 |
| Countries with the Most Species | 0 | - | 4.99 | 95,374 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,739 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,289 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,454 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,096 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,746 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,117 |
| Countries in the Alps | 0 | - | 4.86 | 117,194 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,813 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,693 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,188 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,633 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,440 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,182 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,870 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,927 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,730 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,262 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,299 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,165 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,654 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,919 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,925 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,558 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,828 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,368 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,101 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,499 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,335 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,761 |
| Largest Countries By Category | 0 | - | 4.97 | 157,121 |
| Countries by Countries | 0 | - | 4.96 | 62,491 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,751 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,045 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,391 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,434 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,332 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,008 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,734,282 |
| Pixelated World Map | 0 | - | 5.00 | 142,770 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,086 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,801 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,061 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,585 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,184 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,265 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,041 |
| Island Countries | 0 | - | 4.99 | 708,510 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,312 |
| Northernmost Countries | 0 | - | 4.99 | 358,935 |
| Countries of South America | 0 | - | 5.00 | 918,512 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,148 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,855,822 |
| "Land" Countries | 0 | - | 4.98 | 334,218 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,037 |
| Countries with Megacities | 0 | - | 4.99 | 248,473 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,919 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,423 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,308 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,365 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,307 |
| Countries by Official Language | 0 | - | 4.95 | 193,557 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,067 |
| Countries in their Native Language | 0 | - | 4.99 | 197,290 |
| Independence from Whom | 0 | - | 4.99 | 210,304 |
| Subdivisions by Country | 0 | - | 4.86 | 50,164 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,166 |
| Megadiverse Countries | 0 | - | 4.96 | 134,489 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,456 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,041 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,575 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,927 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,937 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,158 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,431 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,479 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,321 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,794 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,026 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,543 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,646 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,613 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,817 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,145 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,669 |
| World Map Quiz | 0 | - | 4.81 | 63,897 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,634 |
| Countries by Sports in 60 Seconds | 0 | - | 4.91 | 142,456 |
| Countries by Founding Story | 0 | - | 4.95 | 76,780 |
| Countries by Road Signs | 0 | - | 4.98 | 53,319 |
| Countries That Do Not Border | 0 | - | 4.99 | 59,666 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,890 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,581 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,297 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,473 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,169 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,365 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,556 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,102 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,576 |
| Widest Countries East to West | 0 | - | 4.92 | 129,073 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,302 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,551 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,668 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,901 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,890 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,274 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,915 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,653 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,652 |
| Countries with Double Letters | 0 | - | 4.96 | 93,775 |
| Countries that End in N | 0 | - | 4.94 | 157,212 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,153 |
| Countries with Six Letters | 0 | - | 4.93 | 210,798 |
| Countries with W | 0 | - | 4.97 | 158,476 |
| Countries with Z | 0 | - | 4.98 | 288,356 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,830 |
| Countries That End in U | 0 | - | 4.95 | 119,650 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,965 |
| Countries that End in O | 0 | - | 4.92 | 158,687 |
| Countries that End in R | 0 | - | 4.87 | 118,400 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,954 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,508 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,607 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,700 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,259 |
| Countries That End in Y | 0 | - | 4.90 | 185,310 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,692 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,970 |
| Countries that End in I | 0 | - | 4.94 | 134,578 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,557 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,340 |
| Countries That End in NIA | 0 | - | 4.92 | 109,185 |
| Countries That End in BIA | 0 | - | 4.92 | 148,220 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,321 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,684 |
| Countries That End in RIA | 0 | - | 4.93 | 126,237 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,222 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,867 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,741 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,095 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,649 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,061 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,330 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,850 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,741 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,925 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,399 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,065 |
| Countries that End in L | 0 | - | 4.94 | 156,190 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,413 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,030 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,663 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,497 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,561 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,125 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,707 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,031 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,726 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,138 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,978 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,846 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,262 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,482 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,458 |
| ALL First-Level Subdivisions of the World With a Map | 0 | - | 5.00 | 145,485 |
| All First-Level Subdivisions of Europe by Proximity | 0 | - | 4.84 | 76,588 |
| Top World Languages on a Map | 0 | - | 4.93 | 102,432 |
| Official Languages of the World on the Disappearing World Map | 0 | - | 4.99 | 115,720 |
| 407 Islands on the World Map | 0 | - | 4.99 | 34,843 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,364 |
| Smallest Countries with at Least Two Borders | 0 | - | 4.97 | 41,392 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,648 |
