| Australian Capitals | 0 | - | 4.92 | 62,759 |
| Australian States and Territories | 0 | - | 4.96 | 142,260 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,371 |
| Australia True or False | 0 | - | 4.87 | 56,961 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,717 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,399 |
| Australia Country Quiz | 0 | - | 4.43 | 69,674 |
| Oceania Map Quiz | 0 | - | 4.98 | 653,973 |
| Word Chain - Australia | 0 | - | 4.38 | 38,173 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,864 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,078 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,960 |
| Animals of Australia | 0 | - | 4.52 | 42,378 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,270 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,974 |
| AFL Teams | 0 | - | 4.42 | 40,573 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,361 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,018 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,308 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,302 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,559 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,611 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,289 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,009 |
| Flags of Oceania | 0 | - | 5.00 | 260,646 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,440 |
| Regions of New Zealand | 0 | - | 4.84 | 28,595 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,293 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,578 |
| Palau Country Quiz | 0 | - | 4.90 | 23,059 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,482 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,868 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,557 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,794 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,613 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,888 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,752 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,973 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,415 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,680 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,265 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,076 |
| Austria... or Australia? | 0 | - | 4.68 | 104,515 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,367 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,110 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,255 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,621 |
| Name a Valid African Country | 0 | - | 4.98 | 154,393 |
| Famous Australians by Description | 0 | - | 4.23 | 28,013 |
| Australian Slang | 0 | - | 4.24 | 28,656 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,585 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,851 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,529 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,395 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,079 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,528 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,116 |
| Countries that Beat New Zealand | 0 | - | 4.70 | 26,547 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,692 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,264 |
| Geography of Spain | 0 | - | 4.59 | 22,109 |
| New Zealand Country Quiz | 0 | - | 4.70 | 76,091 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 48,119 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,082 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,676 |
| German Groups of Things | 0 | - | 4.46 | 38,529 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,459 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,735 |
| Geography of Egypt | 0 | - | 4.60 | 21,556 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,630 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,601 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,343 |
| Official European Union Languages | 0 | - | 4.97 | 238,962 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,156 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,139 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,813 |
| Asia Map Quiz | 0 | - | 4.99 | 919,922 |
| Geography of China | 0 | - | 4.21 | 13,978 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,119 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,445 |
| Countries that Beat D.R. Congo | 0 | - | 4.77 | 41,882 |
| Marshall Islands Country Quiz | 0 | - | 4.62 | 20,744 |
| Fiji Country Quiz | 0 | - | 4.78 | 24,323 |
| Kiribati Country Quiz | 0 | - | 4.70 | 19,081 |
| Federated States of Micronesia Country Quiz | 0 | - | 4.63 | 21,726 |
| Australia Map Quiz | 0 | - | 4.95 | 345,238 |
| Vanuatu Country Quiz | 0 | - | 4.59 | 22,962 |
| Solomon Islands Country Quiz | 0 | - | 4.56 | 19,112 |
| Nauru Country Quiz | 0 | - | 4.53 | 23,388 |
| Papua New Guinea Country Quiz | 0 | - | 4.60 | 30,742 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,794 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,862 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,259 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,206 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,857 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,745 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,629 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,108 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,120 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,734 |
| The Only European Country ... | 0 | - | 4.91 | 217,462 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,623 |
| Word Chain - France | 0 | - | 4.38 | 42,849 |
| Countries that Beat Greece | 0 | - | 4.53 | 49,064 |
| Italian Foods | 0 | - | 4.30 | 72,953 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,407 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,658 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,920 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,776 |
| British Groups of Things | 0 | - | 4.25 | 82,916 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,048 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,059 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,842 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,336 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,384,992 |
| Countries that Beat Saudi Arabia | 0 | - | 4.74 | 46,464 |
| Countries that Beat Japan | 0 | - | 4.41 | 68,133 |
| Countries that Beat India | 0 | - | 4.42 | 63,111 |
| Countries of Africa | 0 | - | 5.00 | 2,545,742 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,130 |
| African East Coast | 0 | - | 4.96 | 96,308 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,169 |
| Small Countries with Large Economies | 0 | - | 4.63 | 90,139 |
| Random Capital to Country | 0 | - | 4.99 | 2,595,063 |
| Random Country to Capital | 0 | - | 4.98 | 923,063 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,700 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 145,759 |
| Flags of North and South America | 0 | - | 4.99 | 374,448 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,726 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,423 |
| The Only American Country ... | 0 | - | 4.92 | 121,836 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,137 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,956 |
| Countries that Beat Brazil | 0 | - | 4.49 | 68,830 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,643 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,005 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,123 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,231 |
| North America Map Quiz | 0 | - | 4.98 | 249,556 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,868 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,425 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,624 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,767 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,812 |
| American Foods | 0 | - | 3.66 | 39,404 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,626 |
| Names of Generations | 0 | - | 4.09 | 45,218 |
| California Groups of Things | 0 | - | 4.25 | 45,530 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,424 |
| New York Groups of Things | 0 | - | 4.35 | 63,956 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,040 |
| American History Quotes #1 | 0 | - | 4.37 | 96,104 |
| American History Quotes #2 | 0 | - | 4.38 | 41,445 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,508 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,277 |
| US States Quiz | 0 | - | 5.00 | 16,921,716 |
| Movies by State | 0 | - | 4.27 | 40,566 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,788 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,825 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,319 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,231 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,968 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,433 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,009 |
| Celtic Nations | 0 | - | 4.69 | 47,001 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,961 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,954 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,461 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,058 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,439 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,878 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,371 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,752 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,547 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,408 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,403 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,281 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,015 |
| Monarchies of Europe | 0 | - | 4.90 | 98,371 |
| European Countries with One Border | 0 | - | 4.97 | 183,150 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,922 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 86,966 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,679 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,775 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,347 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,342 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,593 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,435 |
| Slavic Countries | 0 | - | 4.96 | 111,909 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,067 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,121 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,885 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,242 |
| States of Germany | 0 | - | 4.95 | 153,261 |
| Word Chain - Germany | 0 | - | 4.31 | 22,628 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,485 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,303 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,209 |
| Regions of Italy | 0 | - | 4.92 | 76,285 |
| Word Chain - Italy | 0 | - | 4.07 | 23,186 |
