| Countries by National Anthem | 0 | - | 4.93 | 71,087 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,087,830 |
| Landlocked Countries | 0 | - | 4.99 | 415,710 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,733,727 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,124 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,123 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,992 |
| Island Countries | 0 | - | 4.99 | 708,475 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,454 |
| Himalayan Countries | 0 | - | 4.95 | 136,107 |
| Andean Countries | 0 | - | 4.95 | 83,235 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,551 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,722 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,240 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,877 |
| Danube Countries | 0 | - | 4.97 | 71,297 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,053 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,749 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,949 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,895 |
| European Landlocked Countries | 0 | - | 4.99 | 146,003 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,593 |
| Countries with the Most Species | 0 | - | 4.99 | 95,368 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,723 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,282 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,451 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,089 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,739 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,111 |
| Countries in the Alps | 0 | - | 4.86 | 117,175 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,799 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,672 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,180 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,625 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,426 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,174 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,854 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,920 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,722 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,249 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,293 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,160 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,649 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,910 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,920 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,542 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,822 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,364 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,095 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,470 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,310 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,753 |
| Largest Countries By Category | 0 | - | 4.97 | 157,100 |
| Countries by Countries | 0 | - | 4.96 | 62,478 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,064 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,738 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,044 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,390 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,995 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,217 |
| Northernmost Countries | 0 | - | 4.99 | 358,901 |
| Countries of South America | 0 | - | 5.00 | 918,374 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,974 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,855,602 |
| "Land" Countries | 0 | - | 4.98 | 334,190 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,516 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,510 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,006 |
| Countries with Megacities | 0 | - | 4.99 | 248,426 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,901 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,410 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,289 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,350 |
| Countries by Official Language | 0 | - | 4.95 | 193,440 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,966 |
| Countries in their Native Language | 0 | - | 4.99 | 197,195 |
| Independence from Whom | 0 | - | 4.99 | 210,265 |
| Subdivisions by Country | 0 | - | 4.86 | 50,158 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,147 |
| Megadiverse Countries | 0 | - | 4.96 | 134,485 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,376 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,035 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,569 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,923 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,927 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,151 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,410 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,476 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,319 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,791 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,004 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,538 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,643 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,610 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,815 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,139 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,243 |
| World Map Quiz | 0 | - | 4.81 | 63,886 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,891 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,629 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,869 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,572 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,291 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,456 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,160 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,360 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,548 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,102 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,566 |
| Widest Countries East to West | 0 | - | 4.92 | 129,066 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,299 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,543 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,667 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,895 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,880 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,269 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,879 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,652 |
| Countries with Double Letters | 0 | - | 4.96 | 93,761 |
| Countries that End in N | 0 | - | 4.94 | 157,198 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,131 |
| Countries with Six Letters | 0 | - | 4.93 | 210,790 |
| Countries with W | 0 | - | 4.97 | 158,469 |
| Countries with Z | 0 | - | 4.98 | 288,336 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,820 |
| Countries That End in U | 0 | - | 4.95 | 119,638 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,947 |
| Countries that End in O | 0 | - | 4.92 | 158,677 |
| Countries that End in R | 0 | - | 4.87 | 118,396 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,949 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,493 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,597 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,694 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,250 |
| Countries That End in Y | 0 | - | 4.90 | 185,306 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,676 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,959 |
| Countries that End in I | 0 | - | 4.94 | 134,571 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,544 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,335 |
| Countries That End in NIA | 0 | - | 4.92 | 109,168 |
| Countries That End in BIA | 0 | - | 4.92 | 148,077 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,310 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,674 |
| Countries That End in RIA | 0 | - | 4.93 | 126,226 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,214 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,842 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,731 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,081 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,641 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,055 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,324 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,838 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,736 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,920 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,396 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,050 |
| Countries that End in L | 0 | - | 4.94 | 156,183 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,371 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,028 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,655 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,491 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,555 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,103 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,699 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,988 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,713 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,119 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,966 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,842 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,259 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,478 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,452 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,809,742 |
| One Border Countries | 0 | - | 4.98 | 465,938 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,599,134 |
| Majority Muslim Countries | 0 | - | 4.98 | 371,175 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,092,615 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,635 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,752 |
| Countries of Africa | 0 | - | 5.00 | 2,516,996 |
| Countries with Four Letters | 0 | - | 4.99 | 419,793 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,199 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,674 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,205 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,769 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,006 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,556 |
| NATO Countries | 0 | - | 4.98 | 277,508 |
| EU Countries Quiz | 0 | - | 4.99 | 271,115 |
| Recently Independent Countries | 0 | - | 4.98 | 158,253 |
| French-Speaking Countries | 0 | - | 4.85 | 269,437 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,465 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,668 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,931 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,761 |
| German-Speaking Countries | 0 | - | 4.89 | 131,233 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,940 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,570 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,027 |
