| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,322 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,792 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,410 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,824 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,489 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,535 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,898 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,460 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,019 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,052 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,225 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,565 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,471 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,032 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,316 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,686,472 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,758 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,662 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,016 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,072 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,438 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,130 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,618 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,065 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,418 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,496 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,009 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,614 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,342 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,421 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,543 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,031 |
| Belize Country Quiz | 0 | - | 4.85 | 20,933 |
| US States Quiz | 0 | - | 5.00 | 16,831,046 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,590 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,645 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,874 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,818 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,318 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,205 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,863 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,789 |
| States of Mexico | 0 | - | 4.95 | 175,497 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,258 |
| South American Cities on the Map | 0 | - | 4.56 | 35,385 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,383 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,865 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,031 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,203 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,340 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,510 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,255 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,019 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,629 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,057 |
| Pixelated United States Map | 0 | - | 4.87 | 94,068 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,639 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,160 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,201 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,687 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,959 |
| U.S. States By Population | 0 | - | 4.92 | 153,004 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,185 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,313 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,124 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,101 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,458 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,356 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,045 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,662 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,970 |
| Countries with Megacities | 0 | - | 4.99 | 258,642 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,843 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,960 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,126 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,966 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,540 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,809 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,908 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,772 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,336 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,109 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,220 |
| Random U.S. City to State | 0 | - | 4.45 | 76,108 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,616 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,133 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,509 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,536 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,289 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,327 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,748 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.68 | 22,060 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,387 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,596 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,104 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,336 |
| US States with an Empty Map | 0 | - | 5.00 | 623,240 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,723 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,380 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,893 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,717 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,539 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,376 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,663 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,255 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,355 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,914 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,443 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,886 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 224,083 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,860 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,755 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,349 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,187 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,459 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,436 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,659 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,759 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,210 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,357 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,826 |
| Biggest Cities in the United States | 0 | - | 4.94 | 975,388 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,516 |
| Name a City - European Countries | 0 | - | 4.90 | 65,187 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,820 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,956 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,722 |
| Grenada Country Quiz | 0 | - | 4.62 | 18,900 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,121 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,420 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,477 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,393 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,799 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,833 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,958 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,373 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,384 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,329 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 113,848 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,009 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,744 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,647 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,034 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,386 |
| Boroughs of New York City | 0 | - | 4.47 | 84,477 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,660 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,133 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,304 |
| Flags of North and South America | 0 | - | 4.99 | 371,885 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,746 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,710 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,394 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,291 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,022 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,372 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,494 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,197 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,689 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,964 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,147 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,817 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,009 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,973 |
| Largest City by Island | 0 | - | 4.87 | 71,657 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,775 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,651 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,234 |
| U.S. Cities by Hispanic Population | 0 | - | 4.32 | 38,240 |
| Megacities on a World Map | 0 | - | 4.98 | 253,317 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,201 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,674 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,724 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,188 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,061 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,713 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,090 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,069 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,406 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,153 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,430 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,071 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,411 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,400 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,815 |
| ALL California Cities | 0 | - | 4.37 | 42,987 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,445 |
| Europe Capital to Country | 0 | - | 4.99 | 249,551 |
| Asia Capital to Country | 0 | - | 4.96 | 126,469 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,571 |
| European Capitals by Map | 0 | - | 4.99 | 138,546 |
| African Capitals by Map | 0 | - | 4.99 | 133,358 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,069 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,871 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,226 |
| European Coastal Capitals | 0 | - | 4.95 | 90,373 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,498 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,143 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,544 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,740 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,894 |
