| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,753 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,163 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,429 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,617 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,537 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,194 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,018 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,280 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,743 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,820 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,823 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,991 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,570 |
| Metals of Antiquity | 0 | - | 4.95 | 93,443 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,717 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,358 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,174 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,478 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,785 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,663 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,513 |
| Biggest Trading Partners - South Africa | 0 | - | 4.74 | 40,288 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,323 |
| Countries with Glaciers | 0 | - | 4.97 | 105,425 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,230 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,560 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,247 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,660 |
| Elements Named for Countries | 0 | - | 4.53 | 24,709 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,438 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,785 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,446 |
| Orthodox Countries | 0 | - | 4.92 | 131,962 |
| Battle to Country | 0 | - | 4.91 | 53,353 |
| Monarchies of Europe | 0 | - | 4.90 | 98,163 |
| Monarchies of Asia | 0 | - | 4.97 | 71,095 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,896 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,757 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 55,965 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,947 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,295 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,152 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,056 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,369 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,826 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,742 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,524 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,044 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,141 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,515 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,163 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,071 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,132 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,029 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,975 |
| Top 10 Richest Countries in Asia | 0 | - | 4.74 | 105,696 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,045 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,464,573 |
| Countries in World War I | 0 | - | 4.88 | 228,161 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,045 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,451 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,297 |
| Hindu Countries | 0 | - | 4.86 | 50,160 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,669 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,782 |
| Movies with Landforms in the Name | 0 | - | 4.16 | 50,437 |
| Boundary Waters | 0 | - | 4.92 | 88,472 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,170 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,098 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,468 |
| World Capitals Quiz | 0 | - | 5.00 | 5,074,213 |
| Landlocked Countries | 0 | - | 4.99 | 420,581 |
| Countries with the Most Cathedrals | 0 | - | 4.49 | 46,204 |
| Least-Forested Countries | 0 | - | 4.53 | 65,207 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,086 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,629 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,539 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,927 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,030 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,179 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,275 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,883 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,566 |
| Top 10 U.S. States with the Longest Coastline | 0 | - | 4.45 | 50,833 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,357 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,183 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,102 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,658 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,664 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,911 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,149 |
| Elements by Picture | 0 | - | 4.27 | 69,971 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,611 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,839 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,970 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,188 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,346 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,586,538 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,062 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,262 |
| Island Countries | 0 | - | 4.99 | 710,417 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,736 |
| Himalayan Countries | 0 | - | 4.95 | 138,104 |
| Andean Countries | 0 | - | 4.95 | 84,275 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,493 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,351 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,125 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,573 |
| Danube Countries | 0 | - | 4.97 | 71,837 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,804 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,245 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,983 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,435 |
| European Landlocked Countries | 0 | - | 4.99 | 146,975 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,386 |
| Countries with the Most Species | 0 | - | 4.99 | 103,099 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,539 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,508 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,660 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,448 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,117 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,509 |
| Countries in the Alps | 0 | - | 4.87 | 117,963 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,562 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,726 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,549 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,460 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,313 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,834 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,474 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,342 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,079 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,706 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,568 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,421 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,074 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,352 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,369 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,551 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,181 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,692 |
| Catholic Countries | 0 | - | 4.79 | 214,976 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,826 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,210 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,685 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,113 |
| Largest Countries By Category | 0 | - | 4.97 | 157,935 |
| Countries by Countries | 0 | - | 4.97 | 63,018 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,854 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,472 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,219 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,650 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,515 |
| Communist Countries in History | 0 | - | 4.63 | 495,784 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,513 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,954 |
| Northernmost Countries | 0 | - | 4.99 | 361,256 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,817 |
| Companies by Country | 0 | - | 4.61 | 119,658 |
| Countries of South America | 0 | - | 5.00 | 925,156 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,105 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,092 |
| "Land" Countries | 0 | - | 4.98 | 336,503 |
| Europe Map Quiz | 0 | - | 5.00 | 4,763,489 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,564 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,798 |
| UK Rivers Map Quiz | 0 | - | 4.54 | 30,462 |
| All Country Flags of the World | 0 | - | 5.00 | 3,665,257 |
| Top World Languages | 0 | - | 4.92 | 822,311 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,359 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,444 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,607 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,191 |
| Longest International Borders | 0 | - | 4.99 | 264,955 |
| Countries with Three Borders | 0 | - | 4.96 | 36,534 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,015 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,136 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,281 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,991 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,235 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,817 |
| Demonym of Every Country | 0 | - | 4.91 | 60,190 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,812 |
| Biblical Geography | 0 | - | 4.40 | 67,200 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,399 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,366 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,822 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,365 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,479 |
| Countries with Megacities | 0 | - | 4.99 | 263,469 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,317 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,257 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,615 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,294 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,766 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,957 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,026 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 223,061 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,139 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,367 |
