| Countries of the World Quiz | 0 | - | 5.00 | 47,782,991 |
| Landlocked Countries | 0 | - | 4.99 | 424,558 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,796,431 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,436 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,318 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,991 |
| Island Countries | 0 | - | 4.99 | 712,089 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,645 |
| Himalayan Countries | 0 | - | 4.94 | 139,781 |
| Andean Countries | 0 | - | 4.94 | 85,191 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,369 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,655 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,937 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,227 |
| Danube Countries | 0 | - | 4.97 | 72,274 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,420 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,709 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,859 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,361 |
| European Landlocked Countries | 0 | - | 4.99 | 147,459 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,092 |
| Countries with the Most Species | 0 | - | 4.99 | 103,489 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,239 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,710 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,822 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,750 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,481 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,907 |
| Countries in the Alps | 0 | - | 4.87 | 118,586 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,323 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,599 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,875 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,890 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,818 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,138 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,229 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,765 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,337 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,068 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,795 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,664 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,453 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,687 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,774 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,529 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,526 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,541 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,488 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,217 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,850 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,430 |
| Largest Countries By Category | 0 | - | 4.97 | 158,657 |
| Countries by Countries | 0 | - | 4.96 | 63,512 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,797 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,098 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,361 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,644 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,988 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,313 |
| Northernmost Countries | 0 | - | 4.99 | 363,420 |
| Countries of South America | 0 | - | 5.00 | 930,951 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,324 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,885,496 |
| "Land" Countries | 0 | - | 4.98 | 338,066 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,308 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,027 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,819 |
| Countries with Megacities | 0 | - | 4.99 | 266,434 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,530 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,921 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,824 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,040 |
| Countries by Official Language | 0 | - | 4.95 | 195,776 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,315 |
| Countries in their Native Language | 0 | - | 4.99 | 199,560 |
| Independence from Whom | 0 | - | 4.99 | 212,777 |
| Subdivisions by Country | 0 | - | 4.87 | 50,570 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,235 |
| Megadiverse Countries | 0 | - | 4.96 | 135,199 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,767 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,483 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,385 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,184 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,446 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,767 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,924 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,511 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,782 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,223 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,219 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,314 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,379 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,104 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,516 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,635 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,043 |
| World Map Quiz | 0 | - | 4.81 | 65,466 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,640 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,591 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,008 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,950 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,437 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,242 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,294 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,415 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,609 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,621 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,171 |
| Widest Countries East to West | 0 | - | 4.92 | 130,328 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,565 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,113 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,471 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,985 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,871 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,368 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,468 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,866 |
| Countries with Double Letters | 0 | - | 4.96 | 96,823 |
| Countries that End in N | 0 | - | 4.95 | 171,698 |
| Countries with Five Letters | 0 | - | 4.96 | 283,409 |
| Countries with Six Letters | 0 | - | 4.94 | 214,179 |
| Countries with W | 0 | - | 4.96 | 160,757 |
| Countries with Z | 0 | - | 4.98 | 292,145 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,104 |
| Countries That End in U | 0 | - | 4.95 | 121,081 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,918 |
| Countries that End in O | 0 | - | 4.92 | 159,729 |
| Countries that End in R | 0 | - | 4.87 | 119,116 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,869 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,604 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,013 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,726 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,651 |
| Countries That End in Y | 0 | - | 4.91 | 186,029 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,305 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,145 |
| Countries that End in I | 0 | - | 4.94 | 135,258 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,471 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,982 |
| Countries That End in NIA | 0 | - | 4.92 | 109,966 |
| Countries That End in BIA | 0 | - | 4.93 | 149,467 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,402 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,672 |
| Countries That End in RIA | 0 | - | 4.93 | 126,989 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,273 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,300 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,038 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,467 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,044 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,741 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,235 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,514 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,793 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,587 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,591 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,276 |
| Countries that End in L | 0 | - | 4.94 | 157,043 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,031 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,317 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,894 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,576 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,277 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,240 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,014 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,350 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,143 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,824 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,122 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,193 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,786 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,163 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,844,412 |
| One Border Countries | 0 | - | 4.98 | 471,339 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,647,116 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,636 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,209 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,783 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,525 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,805 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,090 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,038 |
| Countries by National Anthem | 0 | - | 4.92 | 71,377 |
| NATO Countries | 0 | - | 4.98 | 282,864 |
| EU Countries Quiz | 0 | - | 4.99 | 277,139 |
| Recently Independent Countries | 0 | - | 4.98 | 159,818 |
| French-Speaking Countries | 0 | - | 4.85 | 271,452 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,008 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,431 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 290,764 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 276,200 |
| German-Speaking Countries | 0 | - | 4.92 | 145,947 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,110,916 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,169 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,449 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,808 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 167,577 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,020 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,904 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 113,682 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 112,940 |
