| Name the Constellations - With a Map | 0 | - | 4.92 | 35,728 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,572 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,385 |
| Countries with Glaciers | 0 | - | 4.97 | 104,759 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,901 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,775 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,191 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,335 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,790 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,222 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,830 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,376 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,814 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,694 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,354 |
| Orthodox Countries | 0 | - | 4.91 | 130,651 |
| Battle to Country | 0 | - | 4.91 | 52,676 |
| Monarchies of Europe | 0 | - | 4.90 | 97,527 |
| Monarchies of Asia | 0 | - | 4.97 | 70,720 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,535 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 134,240 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,867 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,394 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,126 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,622 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,989 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,304 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,799 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,807 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,715 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,804 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,632 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,547 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 115,104 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,259 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,429 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,308 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,585 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,836 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,617 |
| Boundary Waters | 0 | - | 4.92 | 88,125 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,897 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,487 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,577 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,994 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,241 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,257 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,187 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,706 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,293 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,253 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,046,077 |
| Countries in World War I | 0 | - | 4.88 | 226,881 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,730 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,352 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 44,992 |
| Hindu Countries | 0 | - | 4.86 | 49,701 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,424 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,220 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,052 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.91 | 80,061 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,309 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,432 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,258 |
| World Capitals Quiz | 0 | - | 5.00 | 5,041,963 |
| Landlocked Countries | 0 | - | 4.99 | 415,238 |
| Countries with the Most Cathedrals | 0 | - | 4.51 | 39,919 |
| Least-Forested Countries | 0 | - | 4.53 | 64,971 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,811 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,505 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,188 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,729,674 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,518 |
| NBA Cities Map Quiz | 0 | - | 4.52 | 250,453 |
| MLB Cities Map Quiz | 0 | - | 4.50 | 69,028 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,074 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,069 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,902 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,637 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,088 |
| Planets By Picture Quiz | 0 | - | 4.49 | 56,339 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,279 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,193 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,078 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,319 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,708 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,574,596 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,737 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,702 |
| Island Countries | 0 | - | 4.99 | 708,267 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,240 |
| Himalayan Countries | 0 | - | 4.95 | 135,930 |
| Andean Countries | 0 | - | 4.94 | 83,148 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,468 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,598 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,169 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,816 |
| Danube Countries | 0 | - | 4.97 | 71,252 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,983 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,699 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,836 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,770 |
| European Landlocked Countries | 0 | - | 4.99 | 145,950 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,497 |
| Countries with the Most Species | 0 | - | 4.99 | 95,332 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,624 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,266 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,437 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,060 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,709 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,065 |
| Countries in the Alps | 0 | - | 4.86 | 117,106 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,741 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,568 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,150 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,571 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,367 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,131 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,781 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,887 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,675 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,199 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,268 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,135 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,606 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,871 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,884 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,438 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,789 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,348 |
| Catholic Countries | 0 | - | 4.78 | 213,875 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,009 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,193 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,161 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,717 |
| Largest Countries By Category | 0 | - | 4.97 | 157,005 |
| Countries by Countries | 0 | - | 4.96 | 62,429 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,685 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,643 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,019 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,484 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,376 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,252 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,266 |
| Communist Countries in History | 0 | - | 4.63 | 493,278 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,924 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,543 |
| Northernmost Countries | 0 | - | 4.99 | 358,629 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,713 |
| Companies by Country | 0 | - | 4.61 | 118,878 |
| Countries of South America | 0 | - | 5.00 | 917,609 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,925 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,860 |
| "Land" Countries | 0 | - | 4.98 | 334,074 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,655 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,828 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,166 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,053 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,190 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,875 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,548 |
| American Monopoly Board - Map Quiz | 0 | - | 4.52 | 21,153 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,260 |
| All Country Flags of the World | 0 | - | 5.00 | 3,616,633 |
| Top World Languages | 0 | - | 4.92 | 815,265 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,709 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,284 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,863 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,744 |
| Longest International Borders | 0 | - | 4.99 | 264,088 |
| Countries with Three Borders | 0 | - | 4.96 | 36,281 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,695 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,787 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 118,700 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,809 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,944 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,916 |
| Demonym of Every Country | 0 | - | 4.91 | 58,784 |
| Elements Named for Countries | 0 | - | 4.52 | 24,475 |
| Biblical Geography | 0 | - | 4.40 | 67,003 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,219 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,700 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,707 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,321 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,866 |
| Countries with Megacities | 0 | - | 4.99 | 248,107 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,748 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,328 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,133 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,274 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,430 |
| Biggest Cities in the World | 0 | - | 4.91 | 792,467 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 221,991 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,164 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,230 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,319 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,920 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,877 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,040 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,883 |
