| European Countries by First 2 Letters | 0 | - | 4.95 | 529,767 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,596 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,315 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,285 |
| Australian Capitals | 0 | - | 4.92 | 62,731 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,352 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,182 |
| Official European Union Languages | 0 | - | 4.97 | 238,607 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,928 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,920 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,809 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,728 |
| Celtic Nations | 0 | - | 4.69 | 46,959 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,378 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,575 |
| Asia Map Quiz | 0 | - | 4.99 | 917,384 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,899 |
| African East Coast | 0 | - | 4.96 | 96,116 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,964 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,765 |
| New World Crops | 0 | - | 4.38 | 30,893 |
| North American Physical Geography | 0 | - | 4.35 | 30,422 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,443 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,395 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,672 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,170 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,011 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,358 |
| The Only European Country ... | 0 | - | 4.91 | 216,828 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,246 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,855 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,048 |
| Countries of Africa | 0 | - | 5.00 | 2,538,922 |
| Australia Map Quiz | 0 | - | 4.95 | 344,733 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,601 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,383,633 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,667 |
| United States Map Quiz | 0 | - | 4.98 | 4,159,651 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,395 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,003 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,803 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,086 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,631 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,304 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,310 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,604 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,143 |
| African Island Countries | 0 | - | 4.96 | 101,691 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,509 |
| Australian States and Territories | 0 | - | 4.96 | 142,050 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,301 |
| Australia Country Quiz | 0 | - | 4.43 | 69,606 |
| Australia True or False | 0 | - | 4.87 | 56,883 |
| Flags of North and South America | 0 | - | 4.99 | 373,421 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,637 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,271 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,875 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,262 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,907 |
| North America Map Quiz | 0 | - | 4.98 | 248,730 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,752 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,821 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,707 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,196 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,905 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,245,139 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,211 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,736 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,255 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,871 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,209 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,410 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,512 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,718 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,102 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,358 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,255 |
| Slavic Countries | 0 | - | 4.96 | 111,721 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,379 |
| Counties of England | 0 | - | 4.97 | 797,441 |
| Flags of Asia Quiz | 0 | - | 4.99 | 614,059 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,277 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,807 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,199 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,035 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,968 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,555 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,487 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,466 |
| Countries of the Middle East | 0 | - | 4.96 | 201,275 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,546 |
| States of India | 0 | - | 4.95 | 193,563 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,350 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,807 |
| The Only African Country ... | 0 | - | 4.99 | 129,150 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,144 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,904 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 322,418 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,253 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.88 | 57,707 |
| Flags of Oceania | 0 | - | 5.00 | 259,662 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,363 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 145,483 |
| Regions of New Zealand | 0 | - | 4.85 | 28,532 |
| The Only American Country ... | 0 | - | 4.92 | 121,664 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,161 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,712 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 58,026 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,715 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,229 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,512 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,529 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,503 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,364 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,152 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,962 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,116 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,906 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,619 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,423 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,186 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,812 |
| Monarchies of Europe | 0 | - | 4.90 | 98,189 |
| European Countries with One Border | 0 | - | 4.97 | 182,862 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,660 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,472 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,480 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,944 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,522 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,905 |
| States of Germany | 0 | - | 4.95 | 152,754 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,105 |
| Regions of Italy | 0 | - | 4.92 | 75,990 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,244 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,064 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,252 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,037 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,773 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,711 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,536 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,059 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,357 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,919 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,260 |
| Monarchies of Asia | 0 | - | 4.97 | 71,118 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,916 |
| Provinces of Turkey | 0 | - | 4.95 | 204,335 |
| Provinces of China | 0 | - | 4.97 | 204,790 |
| Japanese Prefectures | 0 | - | 4.98 | 137,140 |
| Word Chain - Africa | 0 | - | 4.47 | 31,628 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,267 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,502 |
| Mediterranean Geography on a Map | 0 | - | 4.49 | 37,275 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,610 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,660 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,743 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,096 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,305 |
| Slavic Languages | 0 | - | 4.68 | 54,387 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,629 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,485 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,709 |
| Champions League Winners | 0 | - | 4.92 | 1,007,432 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,559 |
| Countries and States in the Caucasus | 0 | - | 4.46 | 51,562 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,895 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 275,411 |
| The Only Remaining Asian Country . . . | 0 | - | 4.64 | 45,855 |
| Middle Eastern Geography Quiz | 0 | - | 4.57 | 43,865 |
| China's Territorial Disputes | 0 | - | 4.44 | 35,661 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,884 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,915 |
| States of India Map Quiz | 0 | - | 4.83 | 26,543 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,265 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,751 |
| African Great Lakes | 0 | - | 4.82 | 66,301 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,649 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,652 |
| Name a Valid African Country | 0 | - | 4.98 | 154,152 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,815 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,087 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,522 |
| Palau Country Quiz | 0 | - | 4.90 | 23,021 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,604 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,142 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,999 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,452 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,830 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,527 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,238 |
| States of Mexico | 0 | - | 4.96 | 176,237 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,801 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,966 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,989 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,114 |
| States of Brazil | 0 | - | 4.97 | 88,230 |
| Central American Countries | 0 | - | 4.98 | 156,526 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,587 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,978 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,705 |
