| Uruguay Country Quiz | 0 | - | 4.83 | 31,446 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,398 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,510 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,648 |
| North America Map Quiz | 0 | - | 4.98 | 246,515 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,539 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,861 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,295 |
| States of Mexico | 0 | - | 4.95 | 174,659 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,534 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,371 |
| States of Brazil | 0 | - | 4.97 | 87,144 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,143 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,755 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,640 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,366 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 218,144 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,102 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,447 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,147 |
| Australian Capitals | 0 | - | 4.92 | 62,657 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,695 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,428 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,847 |
| Official European Union Languages | 0 | - | 4.97 | 237,647 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,308 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,671 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,548 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,532 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,760 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,330 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,540 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,880 |
| Asia Map Quiz | 0 | - | 4.99 | 910,872 |
| Countries of Africa | 0 | - | 5.00 | 2,521,223 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,252 |
| African East Coast | 0 | - | 4.96 | 95,516 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,357 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,194 |
| Australia Map Quiz | 0 | - | 4.94 | 343,255 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,224 |
| New World Crops | 0 | - | 4.37 | 30,596 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,671 |
| History of Mexico | 0 | - | 4.58 | 15,260 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,258 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,519 |
| Word Chain - South America | 0 | - | 4.51 | 23,832 |
| North American Physical Geography | 0 | - | 4.35 | 30,383 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,355 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,429 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,200 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,568 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,890 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,068 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,464 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,916 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,208 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,744 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,300 |
| The Only European Country ... | 0 | - | 4.91 | 215,114 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,305 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,667 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,184 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,080 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,644 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,810 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,214 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,890 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,676 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,833 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,744 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,200 |
| African Island Countries | 0 | - | 4.96 | 101,151 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,616 |
| Australian States and Territories | 0 | - | 4.96 | 141,354 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,136 |
| Australia True or False | 0 | - | 4.87 | 56,670 |
| Flags of North and South America | 0 | - | 4.99 | 370,101 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,803 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,503 |
| South American Physical Geography | 0 | - | 4.58 | 18,308 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,017,215 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,826 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,802 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,680 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,316 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,478 |
| Celtic Nations | 0 | - | 4.69 | 46,871 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,407 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,144 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,693 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,404 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,756 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,097 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,288 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,444 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,310 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,732 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,521 |
| Slavic Countries | 0 | - | 4.96 | 111,245 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,195 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,741 |
| Counties of England | 0 | - | 4.97 | 792,491 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,466 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,045 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,815 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,229 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,725 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,579 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,302 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,970 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,023 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,583 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,514 |
| Countries of the Middle East | 0 | - | 4.96 | 199,838 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,357 |
| States of India | 0 | - | 4.94 | 191,709 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,385 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,202 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,460 |
| The Only African Country ... | 0 | - | 4.99 | 128,696 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,930 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,404 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 320,698 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,713 |
| Flags of Oceania | 0 | - | 5.00 | 256,962 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,122 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,844 |
| Australia Country Quiz | 0 | - | 4.43 | 69,431 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,295 |
| Regions of New Zealand | 0 | - | 4.85 | 28,398 |
| The Only American Country ... | 0 | - | 4.92 | 121,164 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,721 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,989 |
| Famous People from South America | 0 | - | 4.15 | 21,871 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,727 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,378 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,480 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,200 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,815 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,162 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,323 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,452 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,689 |
| US States Quiz | 0 | - | 5.00 | 16,778,227 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,730 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,741 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,618 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,382 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,908 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,491 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,588 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,293 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,229 |
| Monarchies of Europe | 0 | - | 4.90 | 97,693 |
| European Countries with One Border | 0 | - | 4.97 | 182,108 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,974 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,683 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,522 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,279 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,530 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,762 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,141 |
| States of Germany | 0 | - | 4.96 | 151,063 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,458 |
| Regions of Italy | 0 | - | 4.92 | 75,200 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 47,365 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,164 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,726 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,267 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,338 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,646 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,618 |
| Champions League Winners | 0 | - | 4.92 | 1,000,631 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,171 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,490 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,767 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 134,631 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,776 |
| Monarchies of Asia | 0 | - | 4.97 | 70,827 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,625 |
| Provinces of Turkey | 0 | - | 4.95 | 202,926 |
| Provinces of China | 0 | - | 4.97 | 202,190 |
| Japanese Prefectures | 0 | - | 4.98 | 135,732 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,510 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,308 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,965 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 93,020 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,110 |
| States of India Map Quiz | 0 | - | 4.83 | 26,226 |
| Countries Bordering India | 0 | - | 4.98 | 163,198 |
| Countries Closest to India | 0 | - | 4.97 | 102,457 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,974 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,535 |
| African Great Lakes | 0 | - | 4.82 | 65,694 |
| Every African Country Shape | 0 | - | 4.90 | 86,603 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,167 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,517 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,759 |
| Name a Valid African Country | 0 | - | 4.98 | 153,410 |
