| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,226 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,910 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,273 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 63,261 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,805,194 |
| Landlocked Countries | 0 | - | 4.99 | 414,667 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 555,939 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,004,876 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,713 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,461 |
| All Countries by Northernmost Point on Land | 0 | - | 4.89 | 125,229 |
| 20 Countries on an Empty Map #1 | 0 | - | 4.94 | 61,860 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,216 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,026 |
| Himalayan Countries | 0 | - | 4.95 | 135,725 |
| Andean Countries | 0 | - | 4.94 | 83,039 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,385 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,460 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,083 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,746 |
| Danube Countries | 0 | - | 4.97 | 71,188 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,911 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,646 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,721 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,621 |
| European Landlocked Countries | 0 | - | 4.99 | 145,881 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,379 |
| Countries with the Most Species | 0 | - | 4.99 | 95,303 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,545 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,240 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,408 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,021 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,661 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,029 |
| Countries in the Alps | 0 | - | 4.86 | 116,994 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,687 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,465 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,112 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,515 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,303 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,096 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,706 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,845 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,608 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,158 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,236 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,106 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,549 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,831 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,833 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,307 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,742 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,313 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,957 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,887 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,010 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,686 |
| Largest Countries By Category | 0 | - | 4.97 | 156,919 |
| Countries by Countries | 0 | - | 4.96 | 62,375 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,558 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,001 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,361 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,070 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,217 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,867 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,339 |
| Pixelated World Map | 0 | - | 5.00 | 142,583 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,860 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,665 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,961 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,452 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,253 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,505 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,380 |
| Island Countries | 0 | - | 4.99 | 708,034 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,889 |
| Northernmost Countries | 0 | - | 4.99 | 358,309 |
| Countries of South America | 0 | - | 5.00 | 916,683 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,726 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,998 |
| "Land" Countries | 0 | - | 4.98 | 333,926 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,720 |
| Countries with Megacities | 0 | - | 4.99 | 247,794 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,580 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,244 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,967 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,192 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,023 |
| Countries by Official Language | 0 | - | 4.95 | 192,991 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,443 |
| Countries in their Native Language | 0 | - | 4.99 | 196,852 |
| Independence from Whom | 0 | - | 4.99 | 209,963 |
| Subdivisions by Country | 0 | - | 4.86 | 50,115 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,937 |
| Megadiverse Countries | 0 | - | 4.97 | 133,984 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,016 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,971 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,482 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,889 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,792 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,076 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,221 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,254 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,268 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,768 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,771 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,469 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,569 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,559 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,751 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,081 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,468 |
| World Map Quiz | 0 | - | 4.81 | 63,690 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,454 |
| Countries by Founding Story | 0 | - | 4.95 | 76,642 |
| Countries by Road Signs | 0 | - | 4.98 | 53,217 |
| Countries That Do Not Border | 0 | - | 4.99 | 59,414 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,621 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,398 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,134 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,111 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,035 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,223 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,421 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,025 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,466 |
| Widest Countries East to West | 0 | - | 4.92 | 128,960 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,261 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,369 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,617 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,792 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,730 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,162 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 74,574 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,627 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,580 |
| Countries with Double Letters | 0 | - | 4.97 | 93,586 |
| Countries that End in N | 0 | - | 4.94 | 157,069 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,906 |
| Countries with Six Letters | 0 | - | 4.93 | 210,576 |
| Countries with W | 0 | - | 4.97 | 158,361 |
| Countries with Z | 0 | - | 4.98 | 288,104 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,687 |
| Countries That End in U | 0 | - | 4.95 | 119,588 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,785 |
| Countries that End in O | 0 | - | 4.92 | 158,617 |
| Countries that End in R | 0 | - | 4.87 | 118,340 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,908 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,309 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,473 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,594 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,139 |
| Countries That End in Y | 0 | - | 4.90 | 185,260 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,532 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,829 |
| Countries that End in I | 0 | - | 4.94 | 134,502 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,367 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,262 |
| Countries That End in NIA | 0 | - | 4.92 | 109,080 |
| Countries That End in BIA | 0 | - | 4.92 | 147,806 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,189 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,589 |
| Countries That End in RIA | 0 | - | 4.93 | 126,159 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,124 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,562 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,621 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,982 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,480 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,986 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,221 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,743 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,626 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,861 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,256 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,928 |
| Countries that End in L | 0 | - | 4.94 | 156,114 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,799 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,012 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,588 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,390 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,487 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,758 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,514 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 140,893 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,572 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,925 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,854 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,780 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,225 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,448 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,387 |
| ALL First-Level Subdivisions of the World With a Map | 0 | - | 5.00 | 145,116 |
| All First-Level Subdivisions of Europe by Proximity | 0 | - | 4.84 | 76,423 |
| Top World Languages on a Map | 0 | - | 4.93 | 102,332 |
| Official Languages of the World on the Disappearing World Map | 0 | - | 4.99 | 115,278 |
| 407 Islands on the World Map | 0 | - | 4.99 | 34,762 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,250 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,883 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,082 |
| One Border Countries | 0 | - | 4.98 | 465,145 |
