| U.S. Presidents by State | 0 | - | 4.34 | 68,665 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,491 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,637 |
| Vietnam War Countries | 0 | - | 4.82 | 94,151 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,294 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,520 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,651 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,876 |
| United States Map Quiz | 0 | - | 4.98 | 4,156,215 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,500 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,225 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,048 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,294 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,514 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,084 |
| US States Quiz | 0 | - | 5.00 | 16,855,296 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,697 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,704 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,181 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,744 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,387 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,669 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,688 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,410 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,874 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,542 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,426 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,212 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,829 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,480 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,224 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,895 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,742 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,616 |
| Random European Capital to Country | 0 | - | 4.98 | 190,771 |
| Random European Country to Capital | 0 | - | 4.93 | 164,952 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,365 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,683 |
| Random African Country to Capital | 0 | - | 4.94 | 71,165 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,088 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,106 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,574 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,369 |
| United States Country Quiz | 0 | - | 4.43 | 101,426 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,375 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,677 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,136 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,415 |
| Pixelated United States Map | 0 | - | 4.87 | 94,172 |
| US States with an Empty Map | 0 | - | 5.00 | 623,962 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,766 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,070 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,292 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,319 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,894 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,854 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,124 |
| U.S. States By Population | 0 | - | 4.92 | 153,472 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,332 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,386 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,453 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,054 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,160 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,548 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,876 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,645 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,127 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,460 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,166 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,982 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,939 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,046 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,671 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,542 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,486 |
| Asia Map Quiz | 0 | - | 4.99 | 915,775 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,072 |
| U.S. State Flags | 0 | - | 4.89 | 170,112 |
| Hawaiian Islands | 0 | - | 4.83 | 42,677 |
| Rivers of the United States | 0 | - | 4.93 | 66,133 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,895 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,660 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,296 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,682 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,583 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,537 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,861 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,907 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,862 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,127 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,410 |
| Africa Capitals Quiz | 0 | - | 4.99 | 736,821 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,012 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,059 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,989 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,801 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,740 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,078 |
| The Only European Country ... | 0 | - | 4.91 | 216,342 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,025 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,968 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,624 |
| Arms Exports - United States | 0 | - | 4.75 | 62,350 |
| Countries of Africa | 0 | - | 5.00 | 2,533,788 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,191 |
| Countries Closest to Hawaii | 0 | - | 4.55 | 53,609 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,630 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,382,066 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,592 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,848 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,777 |
| Australia Map Quiz | 0 | - | 4.95 | 344,179 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,237 |
| Random U.S. States on a Map | 0 | - | 4.96 | 625,862 |
| African East Coast | 0 | - | 4.96 | 95,956 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,840 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,536,563 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,478 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,284 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,608 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,049 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,716 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,349 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,242,252 |
| Flags of Asia Quiz | 0 | - | 4.99 | 612,689 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,041 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,875 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,364 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,413 |
| Official Cities in the UK | 0 | - | 4.89 | 283,387 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,301 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,570 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,555 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,499 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,981 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,898 |
| Europe Capital to Country | 0 | - | 4.99 | 249,845 |
| Asia Capital to Country | 0 | - | 4.96 | 126,567 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,746 |
| European Capitals by Map | 0 | - | 4.99 | 138,892 |
| African Capitals by Map | 0 | - | 4.99 | 133,601 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,968 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,439 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,384 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,220 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 93,965 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,141 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,988 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,779 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,331 |
| European Coastal Capitals | 0 | - | 4.95 | 90,498 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,545 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,596 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,782 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,789 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,138 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,245 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,236 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,379 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,826 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,454 |
| Countries of the Middle East | 0 | - | 4.96 | 200,979 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,166 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,189 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,037 |
| Slavic Countries | 0 | - | 4.96 | 111,580 |
| African Island Countries | 0 | - | 4.96 | 101,533 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,017 |
| Monarchies of Europe | 0 | - | 4.90 | 98,055 |
| Monarchies of Asia | 0 | - | 4.97 | 71,039 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,841 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,826 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,022,022 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,773 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,409 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,365 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,627 |
| The Only African Country ... | 0 | - | 4.99 | 129,039 |
| The Only American Country ... | 0 | - | 4.92 | 121,509 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,101 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,841 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,565 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,643 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,569 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,163 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,107 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,507 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,143 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,075 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,919 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,195 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,730 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,757 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,400 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,894 |
| Countries That Border Russia | 0 | - | 4.98 | 461,460 |
| European Countries with One Border | 0 | - | 4.97 | 182,660 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,464 |
| Countries Bordering France | 0 | - | 4.83 | 402,274 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,125 |
