| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,092 |
| Rivers of the United States | 0 | - | 4.93 | 66,061 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,614 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,333 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,426 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,502 |
| African Great Lakes | 0 | - | 4.82 | 66,003 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,188 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,031 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,268 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,322 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,376 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,257 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,067 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,677 |
| Brazil Country Quiz | 0 | - | 4.52 | 101,616 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,394 |
| Peru Country Quiz | 0 | - | 4.54 | 48,569 |
| Chile Country Quiz | 0 | - | 4.75 | 39,979 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,806 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,425 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,253 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,559 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,306 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,555 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,590 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,228 |
| US States Quiz | 0 | - | 5.00 | 16,827,032 |
| African Physical Geography | 0 | - | 4.51 | 31,653 |
| Asian Physical Geography | 0 | - | 4.60 | 35,477 |
| Central American Countries | 0 | - | 4.98 | 155,851 |
| Which South American Country? | 0 | - | 4.69 | 51,889 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,832 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,686 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,434 |
| States of Mexico | 0 | - | 4.95 | 175,437 |
| States of Brazil | 0 | - | 4.97 | 87,556 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,614 |
| South American Physical Geography | 0 | - | 4.58 | 18,328 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,024 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,767 |
| Capitals by River | 0 | - | 4.55 | 48,289 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.64 | 75,429 |
| Countries that Beat Brazil | 0 | - | 4.49 | 68,391 |
| Europe Map Quiz | 0 | - | 5.00 | 4,754,657 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 330,950 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,191 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,584 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,641 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,114 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 115,463 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,345 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,357 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,349 |
| Asia Map Quiz | 0 | - | 4.99 | 914,212 |
| European Physical Geography | 0 | - | 4.26 | 33,466 |
| Lakes in the United States by Clue | 0 | - | 4.31 | 19,212 |
| Longest Rivers in the UK | 0 | - | 4.42 | 13,775 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,422 |
| US States with an Empty Map | 0 | - | 5.00 | 623,129 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,682 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,350 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,854 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,558 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,806 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,578 |
| South China Sea Countries | 0 | - | 4.78 | 57,650 |
| Countries of Africa | 0 | - | 5.00 | 2,529,176 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,086 |
| Countries Closest to Maine | 0 | - | 4.85 | 66,959 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,315 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,408 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,120 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,380,669 |
| United States Map Quiz | 0 | - | 4.98 | 4,153,431 |
| Australia Map Quiz | 0 | - | 4.95 | 343,775 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,887 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,382 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,457 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,375 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,782 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,832 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,491 |
| Flags of Asia Quiz | 0 | - | 4.99 | 611,220 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,800 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,475 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,213 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,785 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,883 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,572 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,783 |
| The Only European Country ... | 0 | - | 4.91 | 215,918 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,830 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,674 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,723 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,567 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,213 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,797 |
| Belize Country Quiz | 0 | - | 4.85 | 20,927 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,040 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,435 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,594 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,593 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,995 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,017 |
| Flags of North and South America | 0 | - | 4.99 | 371,754 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,125 |
| Counties of England | 0 | - | 4.97 | 794,558 |
| Seas of Europe | 0 | - | 4.37 | 84,566 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,284 |
| African East Coast | 0 | - | 4.96 | 95,782 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,036 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,369 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,776 |
| Europe Capital to Country | 0 | - | 4.99 | 249,489 |
| Asia Capital to Country | 0 | - | 4.96 | 126,428 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,530 |
| European Capitals by Map | 0 | - | 4.99 | 138,468 |
| African Capitals by Map | 0 | - | 4.99 | 133,266 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,296 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,034 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,850 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,206 |
| European Coastal Capitals | 0 | - | 4.95 | 90,349 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,485 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,045 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,489 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,721 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,103 |
| Countries of the Middle East | 0 | - | 4.96 | 200,692 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,970 |
| Slavic Countries | 0 | - | 4.96 | 111,467 |
| African Island Countries | 0 | - | 4.96 | 101,396 |
| Top 10 African Countries by Coastline | 0 | - | 4.27 | 47,899 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,780 |
| Landforms by Country | 0 | - | 4.52 | 51,957 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,622 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,242 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,122 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,608 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,396 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,496 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,503 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,067 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,945 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,365 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,971 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,949 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,784 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,047 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,868 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,958 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,696 |
| North America Map Quiz | 0 | - | 4.98 | 247,561 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,859 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,064 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,961 |
| Australian States and Territories | 0 | - | 4.96 | 141,664 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,482 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,671 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,228 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,228 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,606 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,916 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,013 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,960 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,533,078 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,279 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,805 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,614 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,736 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,363 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,455 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,977 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,593 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,319 |
| Official Cities in the UK | 0 | - | 4.89 | 282,928 |
| South American Cities on the Map | 0 | - | 4.56 | 35,369 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 69,904 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 146,913 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,437 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,502 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,875 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,973 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,218 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,867 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,957 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,673 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,059 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,057 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,032 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,153 |
| UK Immigration by Country | 0 | - | 4.94 | 140,635 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,704 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,676 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,293 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,687 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,014 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,907 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,978 |
