| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,212 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,801 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.63 | 63,206 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,657 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,345 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,556 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,453 |
| Countries with Glaciers | 0 | - | 4.97 | 104,705 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,591 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,687 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,013 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,274 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,465 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,470 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,137 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,754 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,150 |
| Orthodox Countries | 0 | - | 4.91 | 130,484 |
| Battle to Country | 0 | - | 4.91 | 52,594 |
| Monarchies of Europe | 0 | - | 4.90 | 97,400 |
| Monarchies of Asia | 0 | - | 4.97 | 70,650 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,469 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,539 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,698 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,088 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,487 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,764 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,342 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,819 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,176 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,651 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,236 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,644 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,078 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,603 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,722 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,403 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,424 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,315 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,155 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,067 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,323 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,184 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,526 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,150 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,218 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,237 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,170 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 105,087 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,151 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,970,038 |
| Countries in World War I | 0 | - | 4.88 | 226,727 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,525 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,326 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,650 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,627 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,918 |
| Hindu Countries | 0 | - | 4.86 | 49,638 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,392 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,904 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,793 |
| Disney Animals | 0 | - | 4.27 | 238,758 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,038 |
| Boundary Waters | 0 | - | 4.92 | 88,077 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,844 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,374 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,417 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,897 |
| World Capitals Quiz | 0 | - | 5.00 | 5,035,527 |
| Landlocked Countries | 0 | - | 4.99 | 414,241 |
| Countries with the Most Cathedrals | 0 | - | 4.51 | 39,861 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,507 |
| Least-Forested Countries | 0 | - | 4.53 | 64,926 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,751 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,474 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,123 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,721,953 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,665 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,422 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,487 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,742 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,006 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,003 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,995 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,894 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,969 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,772 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,590 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,078 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,212 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,069 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,753 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,163 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,772 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,572,471 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,355 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,170 |
| Island Countries | 0 | - | 4.99 | 707,854 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,839 |
| Himalayan Countries | 0 | - | 4.95 | 135,566 |
| Andean Countries | 0 | - | 4.94 | 82,945 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,309 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,351 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,013 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,680 |
| Danube Countries | 0 | - | 4.97 | 71,132 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,841 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,604 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,610 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,524 |
| European Landlocked Countries | 0 | - | 4.99 | 145,831 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,299 |
| Countries with the Most Species | 0 | - | 4.99 | 95,281 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,440 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,220 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,389 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,989 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,625 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,001 |
| Countries in the Alps | 0 | - | 4.86 | 116,923 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,637 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,373 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,063 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,476 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,247 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,058 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,662 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,813 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,518 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,116 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,215 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,077 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,496 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,803 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,795 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,197 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,706 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,289 |
| Catholic Countries | 0 | - | 4.78 | 213,738 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,859 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,610 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,871 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,637 |
| Largest Countries By Category | 0 | - | 4.97 | 156,866 |
| Countries by Countries | 0 | - | 4.96 | 62,322 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,066 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,505 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,982 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,456 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,349 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,910 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,176 |
| Communist Countries in History | 0 | - | 4.63 | 492,833 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,008 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,828 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,313 |
| Northernmost Countries | 0 | - | 4.99 | 358,048 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,695 |
| Companies by Country | 0 | - | 4.61 | 118,790 |
| Countries of South America | 0 | - | 5.00 | 915,881 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,907 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,515 |
| "Land" Countries | 0 | - | 4.98 | 333,810 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,707 |
| Europe Map Quiz | 0 | - | 5.00 | 4,734,267 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,780 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,512 |
| All Country Flags of the World | 0 | - | 5.00 | 3,608,029 |
| Top World Languages | 0 | - | 4.92 | 813,919 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,602 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,253 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,601 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,676 |
| Longest International Borders | 0 | - | 4.99 | 263,917 |
| Countries with Three Borders | 0 | - | 4.96 | 36,226 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,634 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,721 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,773 |
| Demonym of Every Country | 0 | - | 4.91 | 58,706 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,258 |
| Elements Named for Countries | 0 | - | 4.52 | 24,430 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,408 |
| Biblical Geography | 0 | - | 4.40 | 66,971 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,184 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,593 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,134 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,905 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,583 |
| Countries with Megacities | 0 | - | 4.99 | 247,487 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,429 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,176 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,839 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,099 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,356 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,176 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,892 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 221,485 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,932 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.54 | 137,719 |
| European Cities with the Biggest Economies | 0 | - | 4.62 | 38,199 |
