| U.S. Presidents by State | 0 | - | 4.34 | 68,485 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,668 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,957 |
| Vietnam War Countries | 0 | - | 4.83 | 93,620 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,429 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,490 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,865 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,587 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,036 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,597 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,323 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,449 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,211 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,108 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,426 |
| US States Quiz | 0 | - | 5.00 | 16,702,928 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,989 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,014 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,871 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,998 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,831 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,396 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,768 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,880 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,011 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,061 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,962 |
| 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 | 172,472 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,973 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,096 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,081 |
| Random European Capital to Country | 0 | - | 4.98 | 189,230 |
| Random European Country to Capital | 0 | - | 4.92 | 147,471 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,412 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,427 |
| Random African Country to Capital | 0 | - | 4.94 | 70,236 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,548 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,892 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,477 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,560 |
| United States Country Quiz | 0 | - | 4.43 | 100,596 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,723 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,110 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,809 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,941 |
| Pixelated United States Map | 0 | - | 4.89 | 93,496 |
| US States with an Empty Map | 0 | - | 5.00 | 618,893 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,746 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,934 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,376 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,427 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,728 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,684 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,927 |
| U.S. States By Population | 0 | - | 4.92 | 152,382 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,414 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,870 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,909 |
| 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 | 64,891 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,888 |
| 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 | 142,377 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,198 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,888 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,549 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,378 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,476 |
| Asia Map Quiz | 0 | - | 4.99 | 907,125 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,662 |
| U.S. State Flags | 0 | - | 4.89 | 167,131 |
| Hawaiian Islands | 0 | - | 4.83 | 42,431 |
| Rivers of the United States | 0 | - | 4.93 | 65,523 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,235 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,484 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,090 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,732 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,878 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,666 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,605 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,079 |
| 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 | 44,320 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,369 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,979 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,927 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,214 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,020 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,824 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,582 |
| The Only European Country ... | 0 | - | 4.91 | 213,878 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,168 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,561 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,214 |
| Arms Exports - United States | 0 | - | 4.70 | 54,365 |
| Countries of Africa | 0 | - | 5.00 | 2,508,193 |
| Countries that Visit Florida the Most | 0 | - | 4.72 | 71,160 |
| Countries Closest to Hawaii | 0 | - | 4.54 | 53,246 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,350 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,976 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,809 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,483 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,936 |
| Australia Map Quiz | 0 | - | 4.94 | 342,509 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,329 |
| Random U.S. States on a Map | 0 | - | 4.96 | 621,570 |
| African East Coast | 0 | - | 4.96 | 95,060 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,049 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,518,827 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,118 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 80,875 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,568 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,523 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,596 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,895 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,658 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,050 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,395 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,655 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.95 | 84,007 |
| Official Cities in the UK | 0 | - | 4.89 | 280,574 |
| 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 | 109,370 |
| 1M Cities by Proximity - United States | 0 | - | 4.55 | 149,717 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,833 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,600 |
| Europe Capital to Country | 0 | - | 4.99 | 247,939 |
| Asia Capital to Country | 0 | - | 4.96 | 125,771 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,474 |
| European Capitals by Map | 0 | - | 4.99 | 136,303 |
| African Capitals by Map | 0 | - | 4.99 | 132,190 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,324 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,914 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,677 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,150 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,418 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,140 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,204 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,189 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,628 |
| European Coastal Capitals | 0 | - | 4.95 | 89,771 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,192 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,838 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,845 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,428 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,714 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,462 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,776 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,902 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,216 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,365 |
| Countries of the Middle East | 0 | - | 4.96 | 198,945 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,275 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,369 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,352 |
| Slavic Countries | 0 | - | 4.96 | 110,868 |
| African Island Countries | 0 | - | 4.96 | 100,800 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,375 |
| Monarchies of Europe | 0 | - | 4.90 | 97,333 |
| Monarchies of Asia | 0 | - | 4.97 | 70,611 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,500 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,434 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,822 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,724 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,502 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,130 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,803 |
| The Only African Country ... | 0 | - | 4.99 | 128,371 |
| The Only American Country ... | 0 | - | 4.92 | 120,767 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,782 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,639 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,723 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,776 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,159 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,172 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,297 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,587 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,286 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,429 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,264 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,509 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,257 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,046 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,407 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,059 |
| Countries That Border Russia | 0 | - | 4.98 | 458,945 |
| European Countries with One Border | 0 | - | 4.97 | 181,644 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,537 |
| Countries Bordering France | 0 | - | 4.83 | 399,204 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,080 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,118 |
