| Make a Stained Glass Window | 0 | - | 5.00 | 68,335 |
| United States Map Quiz | 0 | - | 4.98 | 4,153,508 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,504 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,069 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,254 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,098 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,263 |
| North America Map Quiz | 0 | - | 4.98 | 247,571 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,638 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,159 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,057 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,025 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,230 |
| Countries with the Most Skyscrapers | 0 | - | 4.92 | 143,916 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,505 |
| Countries with the Tallest Buildings | 0 | - | 4.93 | 104,211 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,434 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,687 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,531 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,813 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,346 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,139 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,314 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,719 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,804 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,194 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,319 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,768 |
| Central American Countries | 0 | - | 4.98 | 155,854 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,711 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,422 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,550 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,612 |
| NATO Military Alphabet | 0 | - | 4.98 | 558,292 |
| 12 x 12 Multiplication Table in 2 Minutes | 0 | - | 4.81 | 801,188 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,833 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,367 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,752 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,492 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,033 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,415 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,100 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,360 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,036 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,625 |
| Countries by Military Spending | 0 | - | 4.93 | 177,331 |
| Classic Novels by Plot #2 | 0 | - | 4.87 | 37,883 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 120,384 |
| Africa A-Z | 0 | - | 4.57 | 46,562 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 219,086 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,494 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,396 |
| Countries with the Most Skyscrapers per Capita | 0 | - | 4.69 | 72,401 |
| Tall Building Cities - United States | 0 | - | 4.48 | 68,357 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,313,559 |
| Europe Map Quiz | 0 | - | 5.00 | 4,754,762 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,351 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,392 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,396 |
| Australian Capitals | 0 | - | 4.92 | 62,694 |
| Territories of the United States | 0 | - | 4.79 | 52,324 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,568 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,239 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,067 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,839 |
| New York City Geography | 0 | - | 4.42 | 33,051 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,506 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,984 |
| Official European Union Languages | 0 | - | 4.97 | 238,084 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,589 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,432 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,367 |
| Asia Map Quiz | 0 | - | 4.99 | 914,250 |
| Middle East A-Z | 0 | - | 4.47 | 45,970 |
| Famous Homes - Who Lived There? | 0 | - | 4.09 | 26,811 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 156,802 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,069 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,576 |
| African East Coast | 0 | - | 4.96 | 95,791 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,594 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,437 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,246 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,768 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,683 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,446 |
| Canada A-Z | 0 | - | 4.73 | 32,770 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,691 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,568 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,862 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,483 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,870 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,791 |
| The Only European Country ... | 0 | - | 4.91 | 215,926 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,738 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,747 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,603 |
| Top Arms Exporting Countries | 0 | - | 4.96 | 90,680 |
| Cities with the Tallest Buildings | 0 | - | 4.17 | 84,502 |
| Countries with the Least Dense Road Networks | 0 | - | 4.81 | 41,500 |
| Monarchies of the World | 0 | - | 4.94 | 168,181 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 112,319 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 111,556 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 114,073 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 74,992 |
| Numbers Tile Select Quiz | 0 | - | 4.98 | 74,516 |
| People on Money by Country | 0 | - | 4.83 | 60,259 |
| Astronomy Quiz | 0 | - | 4.90 | 82,368 |
| Largest Objects in the Solar System | 0 | - | 4.99 | 136,845 |
| Solar System Trivia | 0 | - | 4.93 | 46,470 |
| Google What's the Difference? - Animals | 0 | - | 4.93 | 92,713 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 65,542 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,221 |
| Countries that Start with a Vowel | 0 | - | 4.99 | 129,958 |
| Geography by Letter - T | 0 | - | 4.84 | 153,662 |
| Countries with the Most JetPunk Users | 0 | - | 4.99 | 167,430 |
| Most Common JetPunk Answers - Countries | 0 | - | 4.91 | 87,345 |
| Countries By Wikipedia Word Clouds | 0 | - | 4.83 | 39,563 |
| Countries with the Most Major Earthquakes | 0 | - | 4.94 | 117,153 |
| Country Superlatives - Top 2 | 0 | - | 4.99 | 70,394 |
| Countries of Africa | 0 | - | 5.00 | 2,529,315 |
| Australia Map Quiz | 0 | - | 4.95 | 343,786 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,078 |
| History of Mexico | 0 | - | 4.58 | 15,290 |
| Word Chain - South America | 0 | - | 4.51 | 23,870 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,254 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,694 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,601 |
| 75 Americans Named John | 0 | - | 4.41 | 23,888 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,956 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,565 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,969 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,562 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,112 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,339 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,616 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,747 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,712 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,350 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,372 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,883 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,814 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,402 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,292 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,893 |
| Celtic Nations | 0 | - | 4.69 | 46,906 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,380,692 |
| U.S. Army Ranks | 0 | - | 4.48 | 103,411 |
| Top 30 Most Powerful Militaries | 0 | - | 4.52 | 175,771 |
| Countries with Aircraft Carriers | 0 | - | 4.75 | 123,308 |
| Names of Army Units | 0 | - | 4.63 | 36,829 |
| Formula One World Champions | 0 | - | 4.96 | 389,032 |
| IMDB Top 100 Movies | 0 | - | 4.45 | 204,596 |
| Disney Animated Characters | 0 | - | 4.88 | 600,929 |
| Authors with Books Turned into Movies | 0 | - | 4.45 | 62,847 |
| Corporate Partnerships | 0 | - | 4.56 | 36,875 |
| Prime Numbers 1-100 | 0 | - | 4.53 | 126,644 |
| Perfect Squares | 0 | - | 4.53 | 102,259 |
| Digits of Pi | 0 | - | 4.24 | 1,161,604 |
| Fast Math - Addition | 0 | - | 4.87 | 522,093 |
| Mathematics General Knowledge | 0 | - | 4.47 | 66,826 |
| Major World Religions | 0 | - | 4.78 | 93,373 |
| Religion General Knowledge #1 | 0 | - | 4.41 | 92,237 |
| Religion General Knowledge #2 | 0 | - | 4.47 | 73,885 |
| Religion General Knowledge #3 | 0 | - | 4.46 | 69,309 |
| Religion General Knowledge #5 | 0 | - | 4.51 | 46,173 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,861 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,069 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,617 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,368 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,974 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,051 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,127 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,611 |
| African Island Countries | 0 | - | 4.96 | 101,401 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,022 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,115 |
| Australian States and Territories | 0 | - | 4.96 | 141,672 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,228 |
| Australia True or False | 0 | - | 4.87 | 56,756 |
| Flags of North and South America | 0 | - | 4.99 | 371,771 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,691 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,089 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,084 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,124 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,187 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,783 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,057 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,353 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,556 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,919 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,400 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,948 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,116 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,960 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,943 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,501 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,757 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,978 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,702 |
| Slavic Countries | 0 | - | 4.96 | 111,476 |
