| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,250 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,661 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,479 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,832 |
| Countries With No Rivers | 0 | - | 4.96 | 76,938 |
| US States Quiz | 0 | - | 5.00 | 16,924,431 |
| Rivers of the United States | 0 | - | 4.93 | 66,371 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,868 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,267 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,083 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,289 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,906 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,970 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,197 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,138 |
| States of Mexico | 0 | - | 4.96 | 176,879 |
| African Great Lakes | 0 | - | 4.82 | 66,545 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,594 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,982 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,028 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,462 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,630 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,694 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 333,332 |
| Pixelated United States Map | 0 | - | 4.88 | 94,494 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,150 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,757 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,698 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,378 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,693 |
| U.S. States By Population | 0 | - | 4.92 | 153,770 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,758 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,615 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,545 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,340 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,813 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,913 |
| Countries with Fjords | 0 | - | 4.94 | 101,070 |
| US States with an Empty Map | 0 | - | 5.00 | 626,201 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,003 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,553 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,350 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,007 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,338 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,193 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,733 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,874 |
| Flags of North and South America | 0 | - | 4.99 | 374,544 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,966 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,340 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,624 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,423 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,872 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,556 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,813 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,953 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,539 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,354 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,995 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,977 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,371 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,027 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,741 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,087 |
| North Sea Countries | 0 | - | 4.92 | 87,509 |
| Black Sea Countries | 0 | - | 4.87 | 60,663 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,462 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,562 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,306 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,288 |
| The Only American Country ... | 0 | - | 4.92 | 121,845 |
| Belize Country Quiz | 0 | - | 4.85 | 21,020 |
| African Physical Geography | 0 | - | 4.51 | 31,749 |
| Asian Physical Geography | 0 | - | 4.61 | 35,568 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,417 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,671 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,826 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,271 |
| States of Brazil | 0 | - | 4.97 | 88,712 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,222 |
| South American Physical Geography | 0 | - | 4.58 | 18,370 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,121 |
| Lakes in the United States by Clue | 0 | - | 4.31 | 19,227 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,928 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,591 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,597 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,270 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,088 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,528 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,532 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,441 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,860 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,041 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,820 |
| Capitals by River | 0 | - | 4.55 | 48,347 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,618 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,524 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,820 |
| Canada Country Quiz | 0 | - | 4.54 | 132,703 |
| United States Country Quiz | 0 | - | 4.43 | 101,761 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,696 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,218 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,380 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,072 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,973 |
| Rivers A-Z | 0 | - | 4.35 | 32,805 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,693,373 |
| Megadiverse Countries | 0 | - | 4.96 | 135,055 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,156 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,948 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,682 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 116,006 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,869 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,593 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,359 |
| Asia Map Quiz | 0 | - | 4.99 | 920,069 |
| European Physical Geography | 0 | - | 4.26 | 33,542 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,238 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,213 |
| Biggest City by River | 0 | - | 4.38 | 52,892 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,442 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,809 |
| Random U.S. City to State | 0 | - | 4.45 | 76,581 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,884 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,089 |
| Asia Capitals Quiz | 0 | - | 4.98 | 695,071 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 114,156 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,078 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,813 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,725 |
| Boroughs of New York City | 0 | - | 4.47 | 84,726 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,545 |
| Countries of Africa | 0 | - | 5.00 | 2,546,214 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 29,086 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,892 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,536 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,598 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,677 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,160 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,781 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,245 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,054 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,086 |
| Australia Map Quiz | 0 | - | 4.95 | 345,277 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,151 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,856 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,949 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,000 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,327 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,709 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,156 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,399 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,909 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,541 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,253 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,913 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,529 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,796 |
| New England States | 0 | - | 4.51 | 59,839 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,998 |
| U.S. States by Land Area | 0 | - | 4.63 | 52,910 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,043 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 82,931 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,132 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 41,016 |
| U.S. States by Borders | 0 | - | 4.61 | 35,383 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,550 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,156 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,279 |
| O Canada Lyrics | 0 | - | 4.47 | 50,989 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,321 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,226 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,470 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,583 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,121 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,418 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,667 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,998 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,313 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,217 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,148 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,766 |
| The Only European Country ... | 0 | - | 4.91 | 217,529 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,324 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,880 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,664 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,749 |
| Canada or Africa by Area | 0 | - | 4.78 | 18,422 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,445 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,273 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,740 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,924 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,080 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,992 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,366 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,188 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,536 |
| Largest United States Airlines | 0 | - | 4.39 | 55,080 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,875 |
| Counties of England | 0 | - | 4.97 | 799,274 |
