| Vietnam War Countries | 0 | - | 4.82 | 94,677 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 194,812 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,458 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,674 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,615 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,487 |
| United States Map Quiz | 0 | - | 4.98 | 4,172,163 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,346 |
| U.S. Senators by State | 0 | - | 4.44 | 40,113 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,283 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,738 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,306 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,759 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,188 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,636 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,697 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,261 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,067 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 104,969 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,918 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,980 |
| US States Quiz | 0 | - | 5.00 | 17,005,011 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,911 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,749 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,096 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,178 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,154 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,523 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,703 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,702 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,290 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,075 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,494 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,117 |
| Random European Capital to Country | 0 | - | 4.98 | 192,223 |
| Random European Country to Capital | 0 | - | 4.93 | 165,970 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,035 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,493 |
| Random African Capital to Country | 0 | - | 4.97 | 101,393 |
| Random African Country to Capital | 0 | - | 4.95 | 71,791 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,754 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,347 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,681 |
| United States Country Quiz | 0 | - | 4.43 | 102,247 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,892 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,512 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,412 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,060 |
| Pixelated United States Map | 0 | - | 4.88 | 94,847 |
| US States with an Empty Map | 0 | - | 5.00 | 629,020 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,111 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,412 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,331 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,349 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,238 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,402 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,432 |
| U.S. States By Population | 0 | - | 4.92 | 154,191 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,284 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,922 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,354 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,111 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,458 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,895 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,556 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,137 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,090 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,267 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,717 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,848 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,677 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 68,011 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,581 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,165 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,893 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,162 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,292 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,585 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,810 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,759 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,438 |
| Asia Map Quiz | 0 | - | 4.99 | 925,703 |
| South America Flags Map Quiz | 0 | - | 4.95 | 89,023 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,322 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,485 |
| U.S. State Flags | 0 | - | 4.89 | 173,124 |
| Las Vegas Casinos | 0 | - | 4.13 | 38,151 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,156 |
| Hawaiian Islands | 0 | - | 4.83 | 42,967 |
| Rivers of the United States | 0 | - | 4.93 | 66,719 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,080 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,805 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,532 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,634 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 636,222 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,912 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,569 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,424 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,908 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,233 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,945 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,257 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,926 |
| Name a City - European Countries | 0 | - | 4.89 | 66,244 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,280 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,231 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,787 |
| US States and State Capitals | 0 | - | 4.99 | 165,583 |
| New York City A-Z | 0 | - | 4.18 | 32,390 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,954 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,292 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,610 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,066 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,275 |
| The Only European Country ... | 0 | - | 4.91 | 219,236 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,088 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,633 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,949 |
| Arms Exports - United States | 0 | - | 4.77 | 62,754 |
| Random American Countries on a Map | 0 | - | 4.96 | 100,416 |
| Countries of Africa | 0 | - | 5.00 | 2,561,743 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,189 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,792 |
| Countries Closest to Hawaii | 0 | - | 4.55 | 54,007 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,896 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,835 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,534 |
| South America Map Quiz | 0 | - | 5.00 | 1,557,155 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,512 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,014 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,693 |
| Australia Map Quiz | 0 | - | 4.95 | 346,279 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,349 |
| Random U.S. States on a Map | 0 | - | 4.96 | 630,670 |
| Merged U.S. States | 0 | - | 4.37 | 44,432 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,195 |
| Flags of North and South America | 0 | - | 4.99 | 377,375 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,513 |
| Counties of England | 0 | - | 4.97 | 803,391 |
| African East Coast | 0 | - | 4.96 | 96,825 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,786 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,556,553 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,830 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,702 |
| Least Irish U.S. States | 0 | - | 4.49 | 18,405 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,546 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,680 |
| California A-Z | 0 | - | 4.49 | 28,849 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,179 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,869 |
| Official Cities in the UK | 0 | - | 4.89 | 286,509 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,617 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,708 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,551 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,879 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,151 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,239 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,328 |
| Europe Capital to Country | 0 | - | 4.99 | 252,255 |
| Asia Capital to Country | 0 | - | 4.96 | 127,608 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,084 |
| European Capitals by Map | 0 | - | 4.99 | 142,265 |
| African Capitals by Map | 0 | - | 4.99 | 142,325 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,186 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,377 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,288 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,996 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,635 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,193 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,965 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,431 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,247 |
| European Coastal Capitals | 0 | - | 4.95 | 91,377 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,222 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,901 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,931 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,196 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,614 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,994 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,744 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,975 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,506 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,973 |
| Countries of the Middle East | 0 | - | 4.96 | 203,052 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,244 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,163 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,700 |
| Slavic Countries | 0 | - | 4.96 | 112,421 |
| African Island Countries | 0 | - | 4.96 | 102,599 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,547 |
| Monarchies of Europe | 0 | - | 4.90 | 98,929 |
| Monarchies of Asia | 0 | - | 4.97 | 71,535 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,201 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,570 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,314 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 128,401 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,636 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 218,106 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,887 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,369 |
