| Uruguay Country Quiz | 0 | - | 4.83 | 31,341 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,131 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,130 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,598 |
| North America Map Quiz | 0 | - | 4.98 | 244,252 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,365 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,581 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,860 |
| States of Mexico | 0 | - | 4.95 | 173,237 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,107 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,897 |
| States of Brazil | 0 | - | 4.98 | 86,308 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,008 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,214 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,575 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,443 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,535 |
| Canada Multiple Choice Quiz | 0 | - | 4.53 | 48,877 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,356 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,047 |
| Australian Capitals | 0 | - | 4.92 | 62,589 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,418 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,380 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,558 |
| Official European Union Languages | 0 | - | 4.97 | 236,457 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,655 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,704 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,658 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,971 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Native American Tribes in the US | 0 | - | 4.70 | 25,255 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,043 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,306 |
| Asia Map Quiz | 0 | - | 4.99 | 906,601 |
| Countries of Africa | 0 | - | 5.00 | 2,506,358 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,778 |
| African East Coast | 0 | - | 4.96 | 94,997 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,886 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,759 |
| Australia Map Quiz | 0 | - | 4.94 | 342,372 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,191 |
| New World Crops | 0 | - | 4.33 | 23,500 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,609 |
| History of Mexico | 0 | - | 4.58 | 15,227 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,185 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,463 |
| Word Chain - South America | 0 | - | 4.51 | 23,759 |
| North American Physical Geography | 0 | - | 4.35 | 30,352 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,921 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,404 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,082 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,514 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,781 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,015 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,176 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,875 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,209 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,520 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,451 |
| The Only European Country ... | 0 | - | 4.91 | 213,686 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,444 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,548 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,409 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,552 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,417 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,888 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,566 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,530 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,209 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,470 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,022 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,351 |
| African Island Countries | 0 | - | 4.96 | 100,734 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,569 |
| Australian States and Territories | 0 | - | 4.95 | 140,603 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,001 |
| Australia True or False | 0 | - | 4.87 | 56,488 |
| Flags of North and South America | 0 | - | 4.99 | 366,625 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,100 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,830 |
| South American Physical Geography | 0 | - | 4.58 | 18,267 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,161 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,658 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,743 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,476 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,232 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,601 |
| Celtic Nations | 0 | - | 4.69 | 46,806 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,354 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,663 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,253 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,213 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,438 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,819 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,702 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,745 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,270 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,208 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,151 |
| Slavic Countries | 0 | - | 4.96 | 110,815 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,031 |
| Counties of England | 0 | - | 4.97 | 788,841 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,126 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,319 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,720 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,369 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,195 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,657 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,433 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,641 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,714 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,099 |
| Countries of the Middle East | 0 | - | 4.96 | 198,824 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,232 |
| States of India | 0 | - | 4.94 | 189,895 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,132 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,990 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,227 |
| The Only African Country ... | 0 | - | 4.99 | 128,316 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,757 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,027 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,258 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,064 |
| Flags of Oceania | 0 | - | 5.00 | 254,944 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,892 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,377 |
| Australia Country Quiz | 0 | - | 4.43 | 69,256 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,033 |
| Regions of New Zealand | 0 | - | 4.85 | 28,114 |
| The Only American Country ... | 0 | - | 4.92 | 120,714 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,304 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,964 |
| Famous People from South America | 0 | - | 4.15 | 21,780 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,676 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,914 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,885 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,923 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,269 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,825 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,284 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,023 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,466 |
| US States Quiz | 0 | - | 5.00 | 16,691,729 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,659 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,335 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,296 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,005 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,305 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,787 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,180 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,123 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,747 |
| Monarchies of Europe | 0 | - | 4.90 | 97,270 |
| European Countries with One Border | 0 | - | 4.97 | 181,556 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,395 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,179 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,870 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,861 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,148 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,063 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,642 |
| States of Germany | 0 | - | 4.96 | 149,942 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,987 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,506 |
| Regions of Italy | 0 | - | 4.92 | 74,653 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,778 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,252 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,098 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,043 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,876 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,023 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,400 |
| Champions League Winners | 0 | - | 4.92 | 995,829 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,973 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,984 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,306 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,685 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,359 |
| Monarchies of Asia | 0 | - | 4.97 | 70,576 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,416 |
| Provinces of Turkey | 0 | - | 4.95 | 200,813 |
| Provinces of China | 0 | - | 4.97 | 199,955 |
| Japanese Prefectures | 0 | - | 4.98 | 134,460 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,175 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,815 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,637 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 92,763 |
| Kazakhstan Country Quiz | 0 | - | 4.85 | 30,708 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,002 |
| States of India Map Quiz | 0 | - | 4.82 | 26,009 |
| Countries Bordering India | 0 | - | 4.98 | 162,569 |
| Countries Closest to India | 0 | - | 4.97 | 102,180 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,756 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,308 |
| African Great Lakes | 0 | - | 4.82 | 65,097 |
| Every African Country Shape | 0 | - | 4.90 | 86,020 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,828 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,150 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,333 |
| Name a Valid African Country | 0 | - | 4.98 | 152,890 |
