| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,775 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,646 |
| North America Map Quiz | 0 | - | 4.98 | 249,587 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,814 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,324 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,885 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 220,932 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,199 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,446 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,594 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,728 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,425 |
| Peru True or False? | 0 | - | 4.58 | 15,274 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,735 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,153 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,538 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,750 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,838 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,607 |
| States of Mexico | 0 | - | 4.96 | 176,872 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,143 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,220 |
| States of Brazil | 0 | - | 4.97 | 88,705 |
| North American Physical Geography | 0 | - | 4.35 | 30,438 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,454 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,371 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,676 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,080 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,395 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,302 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,743 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,387 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,774 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,761 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,756 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,650 |
| The U.S. Pledge of Allegiance | 0 | - | 3.99 | 18,381 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,527 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,467 |
| Australian Capitals | 0 | - | 4.92 | 62,760 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,352 |
| Official European Union Languages | 0 | - | 4.97 | 238,973 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,167 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,196 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,469 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,024 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,430 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,853 |
| Asia Map Quiz | 0 | - | 4.99 | 920,028 |
| Which Asian Country? | 0 | - | 4.64 | 57,634 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,309 |
| Which African Country? | 0 | - | 4.58 | 36,401 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,984 |
| Australia Map Quiz | 0 | - | 4.95 | 345,262 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,284 |
| New World Crops | 0 | - | 4.38 | 30,919 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,803 |
| History of Mexico | 0 | - | 4.58 | 15,339 |
| South American Geography Quiz #2 | 0 | - | 4.37 | 40,686 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,646 |
| Word Chain - South America | 0 | - | 4.51 | 23,940 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,034 |
| New York True or False? | 0 | - | 4.53 | 33,862 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,871 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,746 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,072 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,654 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,130 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,122 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,752 |
| The Only European Country ... | 0 | - | 4.91 | 217,502 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,643 |
| Austria... or Australia? | 0 | - | 4.68 | 104,518 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,921 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,358 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,038 |
| China Multiple Choice | 0 | - | 4.50 | 37,332 |
| Countries of Africa | 0 | - | 5.00 | 2,546,104 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,142 |
| African East Coast | 0 | - | 4.96 | 96,316 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,182 |
| South Africa Multiple Choice | 0 | - | 4.55 | 27,504 |
| Australian States and Territories | 0 | - | 4.96 | 142,274 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,373 |
| Australia True or False | 0 | - | 4.87 | 56,963 |
| Flags of North and South America | 0 | - | 4.99 | 374,524 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,146 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,055 |
| South American Physical Geography | 0 | - | 4.58 | 18,369 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,241 |
| Florida True or False? | 0 | - | 4.48 | 28,712 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,749 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,851 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,909 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,975 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,603 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,436 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,358 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,209 |
| Celtic Nations | 0 | - | 4.69 | 47,003 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,097 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,961 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,472 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,481 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,383 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,563 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,493 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,365 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,693 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,612 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,445 |
| Slavic Countries | 0 | - | 4.96 | 111,926 |
| France True or False? | 0 | - | 4.44 | 39,989 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,490 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,216 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,720 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,804 |
| Counties of England | 0 | - | 4.97 | 799,184 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,122 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,214 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,005 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,370 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,177 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,434 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,063 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,392 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,252 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,280 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,832 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,677 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,851 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,158 |
| Countries of the Middle East | 0 | - | 4.96 | 201,762 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,604 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,610 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,118 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,491 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,412 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,819 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,522 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,457 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,899 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,504 |
| African Island Countries | 0 | - | 4.96 | 101,904 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,925 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,438 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,602 |
| D.R. Congo Country Quiz | 0 | - | 4.88 | 39,440 |
| Flags of Oceania | 0 | - | 5.00 | 260,702 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,444 |
| Palau Country Quiz | 0 | - | 4.90 | 23,060 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 145,778 |
| Australia Country Quiz | 0 | - | 4.43 | 69,679 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,695 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,299 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,165 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,725 |
| Regions of New Zealand | 0 | - | 4.84 | 28,601 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,485 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,872 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,557 |
| The Only American Country ... | 0 | - | 4.92 | 121,842 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,303 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,412 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,592 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,041 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,952 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,195 |
| Famous People from South America | 0 | - | 4.15 | 22,023 |
| South America A-Z | 0 | - | 4.13 | 10,925 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,266 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,030 |
| Central American Countries | 0 | - | 4.98 | 156,820 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 112,989 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,141 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,718 |
| Famous Caribbean People | 0 | - | 4.37 | 12,637 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,079 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,243 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,435 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,629 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,136 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,781 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,902 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,631 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,909 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,959 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,954 |
| California Multiple Choice | 0 | - | 4.40 | 28,127 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,187 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,433 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,423 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,049 |
| US States Quiz | 0 | - | 5.00 | 16,923,597 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,862 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,850 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,239 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,202 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,979 |
