| U.S. Presidents by State | 0 | - | 4.34 | 68,485 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,670 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,972 |
| Vietnam War Countries | 0 | - | 4.83 | 93,622 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,432 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,493 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,870 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,590 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,063 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,598 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,325 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,450 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,214 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,121 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,429 |
| US States Quiz | 0 | - | 5.00 | 16,703,511 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,992 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,025 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,875 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,003 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,831 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,398 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,769 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,881 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,012 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,067 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,963 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,691 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,293 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,412 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,484 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,974 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,099 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,086 |
| Random European Capital to Country | 0 | - | 4.98 | 189,245 |
| Random European Country to Capital | 0 | - | 4.92 | 147,474 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,416 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,431 |
| Random African Country to Capital | 0 | - | 4.94 | 70,240 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,550 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,893 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,478 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,564 |
| United States Country Quiz | 0 | - | 4.43 | 100,599 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,810 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,110 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,810 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,946 |
| Pixelated United States Map | 0 | - | 4.89 | 93,498 |
| US States with an Empty Map | 0 | - | 5.00 | 618,912 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,747 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,938 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,378 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,427 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,732 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,684 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,930 |
| U.S. States By Population | 0 | - | 4.92 | 152,384 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,417 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,873 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,911 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,963 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,767 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,894 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,890 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,089 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,500 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,073 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,665 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,382 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,201 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,890 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,560 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,407 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,508 |
| Asia Map Quiz | 0 | - | 4.99 | 907,147 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,663 |
| U.S. State Flags | 0 | - | 4.89 | 167,137 |
| Hawaiian Islands | 0 | - | 4.83 | 42,432 |
| Rivers of the United States | 0 | - | 4.93 | 65,524 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,243 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,493 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,090 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,738 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,879 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,668 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,605 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,080 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,556 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,035 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 44,328 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,389 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,004 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,927 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,234 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,030 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,825 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,592 |
| The Only European Country ... | 0 | - | 4.91 | 213,888 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,173 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,572 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,215 |
| Arms Exports - United States | 0 | - | 4.70 | 54,366 |
| Countries of Africa | 0 | - | 5.00 | 2,508,258 |
| Countries that Visit Florida the Most | 0 | - | 4.72 | 71,167 |
| Countries Closest to Hawaii | 0 | - | 4.54 | 53,249 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,354 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,986 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,809 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,486 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,943 |
| Australia Map Quiz | 0 | - | 4.94 | 342,515 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,340 |
| Random U.S. States on a Map | 0 | - | 4.96 | 621,576 |
| African East Coast | 0 | - | 4.96 | 95,061 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,051 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,518,870 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,119 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 80,876 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,577 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,526 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,599 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,978 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,682 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,052 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,396 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,693 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 84,008 |
| Official Cities in the UK | 0 | - | 4.89 | 280,593 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,726 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,461 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,373 |
| 1M Cities by Proximity - United States | 0 | - | 4.55 | 149,720 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,844 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,601 |
| Europe Capital to Country | 0 | - | 4.99 | 247,948 |
| Asia Capital to Country | 0 | - | 4.96 | 125,772 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,484 |
| European Capitals by Map | 0 | - | 4.99 | 136,310 |
| African Capitals by Map | 0 | - | 4.99 | 132,192 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,331 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,925 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,681 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,153 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,422 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,141 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,210 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,191 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,631 |
| European Coastal Capitals | 0 | - | 4.95 | 89,784 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,193 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,852 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,870 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,430 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,717 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,464 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,783 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,945 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,219 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,374 |
| Countries of the Middle East | 0 | - | 4.96 | 198,951 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,278 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,373 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,354 |
| Slavic Countries | 0 | - | 4.96 | 110,873 |
| African Island Countries | 0 | - | 4.96 | 100,801 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,377 |
| Monarchies of Europe | 0 | - | 4.90 | 97,337 |
| Monarchies of Asia | 0 | - | 4.97 | 70,611 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,501 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,434 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,853 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,731 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,503 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,135 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,804 |
| The Only African Country ... | 0 | - | 4.99 | 128,376 |
| The Only American Country ... | 0 | - | 4.92 | 120,772 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,783 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,642 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,725 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,781 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,160 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,176 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,298 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,588 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,292 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,432 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,266 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,510 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,258 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,051 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,414 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,066 |
| Countries That Border Russia | 0 | - | 4.98 | 458,956 |
| European Countries with One Border | 0 | - | 4.97 | 181,646 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,542 |
| Countries Bordering France | 0 | - | 4.83 | 399,248 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,086 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,120 |
