| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,503 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,007 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,577 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,436 |
| Topological Map of Asia Quiz | 0 | - | 4.82 | 20,355 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,422 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,820 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,113 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,485 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,795 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,400 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,197 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,451 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,103 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,402 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,366 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,341 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,618 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,684 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,332 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,058 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,509 |
| States of Mexico | 0 | - | 4.96 | 177,652 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,441 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,317 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,544 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,440 |
| States of Brazil | 0 | - | 4.97 | 89,213 |
| Central American Countries | 0 | - | 4.98 | 157,122 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,151 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,845 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,290 |
| American History Quotes #1 | 0 | - | 4.37 | 96,168 |
| American History Quotes #2 | 0 | - | 4.38 | 41,484 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,314 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,132 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,454 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,431 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,087 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,686 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,490 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,625 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,732 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,608 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,382 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,463 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,886 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,776 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,453 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,572 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,335 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,941 |
| Name a Valid African Country | 0 | - | 4.98 | 154,801 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,115 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,768 |
| History of Mexico | 0 | - | 4.52 | 15,355 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,913 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,718,871 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,571 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,331 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,829 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,692 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,801 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,709 |
| Name that Greek Letter | 0 | - | 4.93 | 324,669 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,509 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,260 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,717 |
| Name the English Monarchs | 0 | - | 4.91 | 505,406 |
| Prime Ministers of the UK | 0 | - | 4.95 | 441,385 |
| Which City in Latin America? | 0 | - | 4.63 | 47,123 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,069 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,133 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,793 |
| Countries that Beat Brazil | 0 | - | 4.49 | 69,074 |
| Rivers of the United States | 0 | - | 4.93 | 66,540 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,333 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,910 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,461 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,562 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,674 |
| The American Civil War | 0 | - | 4.62 | 52,585 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,128 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,950 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,809 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,393 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,311 |
| The Trojan War | 0 | - | 4.83 | 39,933 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,676 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,129 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,483 |
| Roman Emperors | 0 | - | 4.95 | 120,890 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,144 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,729 |
| Geography of Spain | 0 | - | 4.59 | 22,149 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,926 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,331 |
| Topological Map of Africa Quiz | 0 | - | 4.80 | 21,550 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,345 |
| Belize Country Quiz | 0 | - | 4.85 | 21,059 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,285 |
| Names of Generations | 0 | - | 4.09 | 45,393 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,549 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,967 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,128 |
| Hawaiian Islands | 0 | - | 4.83 | 42,863 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,461 |
| U.S. State Flags | 0 | - | 4.89 | 172,191 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,214 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,044 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,291 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,356 |
| Which City in Canada? | 0 | - | 4.83 | 57,274 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,712 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,510 |
| History of Russia Quiz | 0 | - | 4.47 | 31,985 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,977 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,984 |
| Ancient Greek Words | 0 | - | 4.93 | 112,241 |
| History of Italy | 0 | - | 4.55 | 32,108 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,064 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,413 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,783 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,380 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,039 |
| The Vietnam War | 0 | - | 4.44 | 35,623 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,666 |
| History of South Africa | 0 | - | 4.60 | 17,742 |
| Word Chain - Australia | 0 | - | 4.38 | 38,216 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,788 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,905 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,668 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,130 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,852 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,342 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,750 |
| States That Beat Montana | 0 | - | 4.49 | 25,714 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,585 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,552,271 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,733 |
| Topological Map of Mainland Europe | 0 | - | 4.39 | 29,003 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,900 |
| History of Austria | 0 | - | 4.70 | 17,952 |
| Geography of the French Empire | 0 | - | 4.45 | 27,194 |
| The French Revolution | 0 | - | 4.47 | 24,110 |
| History of France | 0 | - | 4.61 | 57,465 |
| German Groups of Things | 0 | - | 4.47 | 38,596 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,542 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,922 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,371 |
| The Vikings! | 0 | - | 4.46 | 28,391 |
| The Portuguese Empire | 0 | - | 4.58 | 12,095 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,652 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,436 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,113 |
| Geography of the British Empire | 0 | - | 4.48 | 39,813 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,293 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,304 |
| History of Iran | 0 | - | 4.66 | 16,404 |
| Geography of Egypt | 0 | - | 4.60 | 21,584 |
| Geography of China | 0 | - | 4.21 | 14,001 |
| History of China | 0 | - | 4.35 | 57,471 |
| History of India | 0 | - | 4.62 | 21,489 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,038 |
| Political Movements by Country | 0 | - | 4.46 | 72,708 |
| Inventions by Country #1 | 0 | - | 4.47 | 55,153 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,307 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,614 |
| Countries that Beat D.R. Congo | 0 | - | 4.75 | 41,958 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,900 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,256 |
| Australian Capitals | 0 | - | 4.92 | 62,804 |
| Australia Map Quiz | 0 | - | 4.95 | 345,773 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,150 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,833 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,640 |
| South American Physical Geography | 0 | - | 4.58 | 18,386 |
| Which South American Country? | 0 | - | 4.69 | 52,060 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,724 |
| Brazil Country Quiz | 0 | - | 4.52 | 102,215 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,793 |
| Chile Country Quiz | 0 | - | 4.75 | 40,222 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,973 |
| Peru Country Quiz | 0 | - | 4.54 | 48,858 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,844 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,305 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,690 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,215 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,750 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,847 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,347 |
| 75 Americans Named John | 0 | - | 4.41 | 23,956 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,579 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 633,112 |
| States that Beat Alaska | 0 | - | 4.49 | 26,570 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,120 |
| Fictional Characters from California by Picture | 0 | - | 4.23 | 22,567 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,972 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,325 |
| Fictional Characters from New York | 0 | - | 4.09 | 21,433 |
