| Uruguay Country Quiz | 0 | - | 4.83 | 31,353 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,149 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,155 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,600 |
| North America Map Quiz | 0 | - | 4.98 | 244,397 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,374 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,607 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,890 |
| States of Mexico | 0 | - | 4.95 | 173,318 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,145 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,953 |
| States of Brazil | 0 | - | 4.98 | 86,375 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,012 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,311 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,577 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,509 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,666 |
| Canada Multiple Choice Quiz | 0 | - | 4.53 | 48,889 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,362 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,090 |
| Australian Capitals | 0 | - | 4.92 | 62,593 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,436 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,385 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,574 |
| Official European Union Languages | 0 | - | 4.97 | 236,506 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,695 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,898 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,162 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,222 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,260 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,170 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,251 |
| Asia Map Quiz | 0 | - | 4.99 | 906,931 |
| Countries of Africa | 0 | - | 5.00 | 2,507,511 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,803 |
| African East Coast | 0 | - | 4.96 | 95,039 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,914 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,784 |
| Australia Map Quiz | 0 | - | 4.94 | 342,451 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,193 |
| New World Crops | 0 | - | 4.33 | 23,502 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,612 |
| History of Mexico | 0 | - | 4.58 | 15,230 |
| South American Geography Quiz #2 | 0 | - | 4.62 | 39,190 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,469 |
| Word Chain - South America | 0 | - | 4.51 | 23,763 |
| North American Physical Geography | 0 | - | 4.35 | 30,354 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,593 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,406 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,086 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,517 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,792 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,117 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,200 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,956 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,291 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,534 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,528 |
| The Only European Country ... | 0 | - | 4.91 | 213,797 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,516 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,563 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,452 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,845 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,431 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,245 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,606 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,554 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,251 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,500 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,093 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,431 |
| African Island Countries | 0 | - | 4.96 | 100,780 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,630 |
| Australian States and Territories | 0 | - | 4.95 | 140,778 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,016 |
| Australia True or False | 0 | - | 4.87 | 56,499 |
| Flags of North and South America | 0 | - | 4.99 | 367,097 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,213 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,119 |
| South American Physical Geography | 0 | - | 4.58 | 18,269 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,516 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,847 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,898 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,496 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,238 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,416 |
| Celtic Nations | 0 | - | 4.69 | 46,810 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,657 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,704 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,277 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,290 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,458 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,840 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,805 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,855 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,396 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,246 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,184 |
| Slavic Countries | 0 | - | 4.96 | 110,847 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,046 |
| Counties of England | 0 | - | 4.97 | 789,093 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,455 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,341 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,752 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,392 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,228 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,697 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,475 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,676 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,754 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,148 |
| Countries of the Middle East | 0 | - | 4.96 | 198,884 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,241 |
| States of India | 0 | - | 4.94 | 190,013 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,155 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,997 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,246 |
| The Only African Country ... | 0 | - | 4.99 | 128,353 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,774 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,055 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,317 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,097 |
| Flags of Oceania | 0 | - | 5.00 | 255,146 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,910 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,413 |
| Australia Country Quiz | 0 | - | 4.43 | 69,274 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,048 |
| Regions of New Zealand | 0 | - | 4.85 | 28,127 |
| The Only American Country ... | 0 | - | 4.92 | 120,748 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,331 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,966 |
| Famous People from South America | 0 | - | 4.15 | 21,784 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,765 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,942 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,963 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,947 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,311 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,860 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,291 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,055 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,486 |
| US States Quiz | 0 | - | 5.00 | 16,698,596 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,661 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,360 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,323 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,033 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,373 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,839 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,209 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,139 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,791 |
| Monarchies of Europe | 0 | - | 4.90 | 97,303 |
| European Countries with One Border | 0 | - | 4.97 | 181,608 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,513 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,229 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,931 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,951 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,186 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,111 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,676 |
| States of Germany | 0 | - | 4.96 | 150,018 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,002 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,517 |
| Regions of Italy | 0 | - | 4.92 | 74,696 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,802 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,318 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,140 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,109 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,903 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,072 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,404 |
| Champions League Winners | 0 | - | 4.92 | 996,228 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,994 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,022 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,351 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,743 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,398 |
| Monarchies of Asia | 0 | - | 4.97 | 70,592 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,430 |
| Provinces of Turkey | 0 | - | 4.95 | 200,962 |
| Provinces of China | 0 | - | 4.97 | 200,084 |
| Japanese Prefectures | 0 | - | 4.98 | 134,534 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,206 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,876 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,668 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 92,779 |
| Kazakhstan Country Quiz | 0 | - | 4.85 | 30,841 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,012 |
| States of India Map Quiz | 0 | - | 4.82 | 26,031 |
| Countries Bordering India | 0 | - | 4.98 | 162,593 |
| Countries Closest to India | 0 | - | 4.97 | 102,203 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,770 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,326 |
| African Great Lakes | 0 | - | 4.82 | 65,144 |
| Every African Country Shape | 0 | - | 4.90 | 86,090 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,855 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,168 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,353 |
| Name a Valid African Country | 0 | - | 4.98 | 152,927 |
