| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,667 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,522 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,411 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,252 |
| Landlocked Countries | 0 | - | 4.99 | 417,326 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,217,479 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,994 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,243 |
| Himalayan Countries | 0 | - | 4.95 | 136,780 |
| Andean Countries | 0 | - | 4.95 | 83,615 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,873 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,175 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,544 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,136 |
| Danube Countries | 0 | - | 4.97 | 71,488 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,318 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,910 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,314 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,312 |
| European Landlocked Countries | 0 | - | 4.99 | 146,201 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,890 |
| Countries with the Most Species | 0 | - | 4.99 | 102,427 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,016 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,358 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,537 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,205 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,860 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,238 |
| Countries in the Alps | 0 | - | 4.86 | 117,442 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,969 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,054 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,309 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,812 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,908 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,325 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,079 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,048 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,867 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,400 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,401 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,244 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,792 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,056 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,068 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,857 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,943 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,473 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,311 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,411 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,770 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,879 |
| Largest Countries By Category | 0 | - | 4.97 | 157,367 |
| Countries by Countries | 0 | - | 4.96 | 62,677 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,963 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,109 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,426 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,985 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,466 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,155 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,745,813 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,629 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,133 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,268 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,228 |
| Northernmost Countries | 0 | - | 4.99 | 359,753 |
| Countries of South America | 0 | - | 5.00 | 920,637 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,286 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,861,125 |
| "Land" Countries | 0 | - | 4.98 | 335,243 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,179 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,512 |
| Countries with Megacities | 0 | - | 4.99 | 249,466 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,359 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,683 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,693 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,648 |
| Countries by Official Language | 0 | - | 4.95 | 194,269 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,095 |
| Countries in their Native Language | 0 | - | 4.99 | 197,864 |
| Independence from Whom | 0 | - | 4.99 | 210,990 |
| Subdivisions by Country | 0 | - | 4.86 | 50,227 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,459 |
| Megadiverse Countries | 0 | - | 4.96 | 134,612 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,026 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,111 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,967 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,279 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,714 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,616 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,822 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,490 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,624 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,719 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,687 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,897 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,761 |
| World Map Quiz | 0 | - | 4.81 | 64,236 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,751 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,784 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,590 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,516 |
| Countries by Founding Story | 0 | - | 4.95 | 76,939 |
| Countries by Road Signs | 0 | - | 4.98 | 53,491 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,195 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,747 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,481 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,910 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,356 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,526 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,694 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,187 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,160 |
| Widest Countries East to West | 0 | - | 4.92 | 129,230 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,343 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,745 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,947 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,054 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,054 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,424 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,163 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,691 |
| Countries with Double Letters | 0 | - | 4.97 | 94,642 |
| Countries that End in N | 0 | - | 4.95 | 168,813 |
| Countries with Five Letters | 0 | - | 4.96 | 274,121 |
| Countries with Six Letters | 0 | - | 4.94 | 211,921 |
| Countries with W | 0 | - | 4.97 | 159,195 |
| Countries with Z | 0 | - | 4.98 | 289,310 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,395 |
| Countries That End in U | 0 | - | 4.95 | 120,229 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,419 |
| Countries that End in O | 0 | - | 4.92 | 159,045 |
| Countries that End in R | 0 | - | 4.87 | 118,618 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,393 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,993 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,896 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,921 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,506 |
| Countries That End in Y | 0 | - | 4.90 | 185,528 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,986 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,205 |
| Countries that End in I | 0 | - | 4.94 | 134,737 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,817 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,466 |
| Countries That End in NIA | 0 | - | 4.92 | 109,380 |
| Countries That End in BIA | 0 | - | 4.93 | 148,658 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,523 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,878 |
| Countries That End in RIA | 0 | - | 4.93 | 126,406 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,452 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,263 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,976 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,303 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,934 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,211 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,533 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,057 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,937 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,094 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,637 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,331 |
| Countries that End in L | 0 | - | 4.94 | 156,385 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,284 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,111 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,753 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,612 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,676 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,456 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,902 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,440 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,897 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,355 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,100 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,893 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,315 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,545 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,556 |
| Name a Valid Island Country | 0 | - | 4.96 | 114,573 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,136 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,019 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,134 |
| One Border Countries | 0 | - | 4.98 | 466,822 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,170 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,816,399 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,607,492 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,365 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,060 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,445 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,140 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,182 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,730 |
| Countries by National Anthem | 0 | - | 4.92 | 71,150 |
| NATO Countries | 0 | - | 4.98 | 278,512 |
| EU Countries Quiz | 0 | - | 4.99 | 272,078 |
| Recently Independent Countries | 0 | - | 4.98 | 158,477 |
| French-Speaking Countries | 0 | - | 4.85 | 269,932 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,640 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,152 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,741 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,886 |
| German-Speaking Countries | 0 | - | 4.91 | 144,660 |
