| World Map Quiz | 0 | - | 4.81 | 65,867 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,938,805 |
| Landlocked Countries | 0 | - | 4.99 | 426,856 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,809,525 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,719 |
| Himalayan Countries | 0 | - | 4.93 | 140,638 |
| Andean Countries | 0 | - | 4.94 | 85,716 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,834 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,357 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,392 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,623 |
| Danube Countries | 0 | - | 4.97 | 72,510 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,730 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,930 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,350 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,808 |
| European Landlocked Countries | 0 | - | 4.99 | 147,699 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,463 |
| Countries with the Most Species | 0 | - | 4.99 | 103,621 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,568 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,801 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,933 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,899 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,649 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,097 |
| Countries in the Alps | 0 | - | 4.87 | 118,909 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,880 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,048 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,034 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,129 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,081 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,348 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,522 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,961 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,490 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,278 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,932 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,809 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,632 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,884 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,980 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,063 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,688 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,036 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,778 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,104 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,373 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,585 |
| Largest Countries By Category | 0 | - | 4.97 | 159,011 |
| Countries by Countries | 0 | - | 4.97 | 63,754 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,374 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,436 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,697 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,278 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,504 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,191 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,204 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,933 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,125 |
| Island Countries | 0 | - | 4.99 | 712,855 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,658 |
| Northernmost Countries | 0 | - | 4.99 | 364,411 |
| Countries of South America | 0 | - | 5.00 | 933,697 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,744 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,680 |
| "Land" Countries | 0 | - | 4.98 | 338,786 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,899 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,682 |
| Europe Map Quiz | 0 | - | 5.00 | 4,791,240 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,395 |
| Countries with Megacities | 0 | - | 4.99 | 267,602 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,040 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,272 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,380 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,377 |
| Countries by Official Language | 0 | - | 4.95 | 196,151 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,833 |
| Countries in their Native Language | 0 | - | 4.99 | 199,881 |
| Independence from Whom | 0 | - | 4.99 | 213,298 |
| Subdivisions by Country | 0 | - | 4.87 | 50,647 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,598 |
| Megadiverse Countries | 0 | - | 4.96 | 147,593 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,070 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,563 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,770 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,244 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,399 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,907 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,224 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,603 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,139 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,280 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,689 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,455 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,482 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,195 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,615 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,936 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,614 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,693 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,772 |
| Countries by Founding Story | 0 | - | 4.95 | 77,883 |
| Countries by Road Signs | 0 | - | 4.98 | 54,410 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,427 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,185 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,647 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,805 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,514 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,623 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,813 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,742 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,891 |
| Widest Countries East to West | 0 | - | 4.92 | 130,798 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,623 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,342 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,545 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,121 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,066 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,573 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,525 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,915 |
| Countries with Double Letters | 0 | - | 4.96 | 97,457 |
| Countries that End in N | 0 | - | 4.95 | 172,496 |
| Countries with Five Letters | 0 | - | 4.96 | 284,436 |
| Countries with Six Letters | 0 | - | 4.94 | 214,811 |
| Countries with W | 0 | - | 4.96 | 161,198 |
| Countries with Z | 0 | - | 4.98 | 292,833 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,567 |
| Countries That End in U | 0 | - | 4.95 | 121,332 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,318 |
| Countries that End in O | 0 | - | 4.92 | 160,323 |
| Countries that End in R | 0 | - | 4.87 | 119,254 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,022 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,054 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 182,402 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,072 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,487 |
| Countries That End in Y | 0 | - | 4.91 | 186,146 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,028 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,370 |
| Countries that End in I | 0 | - | 4.94 | 135,386 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,077 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,115 |
| Countries That End in NIA | 0 | - | 4.92 | 110,120 |
| Countries That End in BIA | 0 | - | 4.93 | 149,688 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,874 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,852 |
| Countries That End in RIA | 0 | - | 4.93 | 127,114 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,495 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,839 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,320 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,777 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,331 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,881 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,405 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,578 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,002 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,698 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,848 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,544 |
| Countries that End in L | 0 | - | 4.94 | 157,207 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,370 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,368 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,816 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,127 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,519 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,584 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,252 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,492 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,374 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,119 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,287 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,281 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,964 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,864 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,329 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,403 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,806 |
| One Border Countries | 0 | - | 4.98 | 472,361 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,070 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,935 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,978 |
| Asia Map Quiz | 0 | - | 4.99 | 926,115 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,851,576 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,510 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,657,520 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,734 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,422 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,423 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,770 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,961 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,318 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,685 |
| Countries by National Anthem | 0 | - | 4.92 | 71,427 |
| NATO Countries | 0 | - | 4.98 | 283,804 |
| EU Countries Quiz | 0 | - | 4.99 | 278,607 |
| Recently Independent Countries | 0 | - | 4.98 | 160,453 |
| French-Speaking Countries | 0 | - | 4.85 | 271,813 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,209 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,072 |
