| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,361 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,302 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,094 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,592 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,299 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,713 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,377 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,758 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,230 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,425 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,695 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,739 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,441 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,505 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,220 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,876 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,048 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,511 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,874 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,044 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,948 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,312 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,780 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,854 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,929 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,800 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,958 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,810 |
| Cuba Country Quiz | 0 | - | 4.69 | 51,152 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,335 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,856 |
| Belize Country Quiz | 0 | - | 4.85 | 20,796 |
| US States Quiz | 0 | - | 5.00 | 16,693,870 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,209 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,559 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,910 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,517 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,621 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,794 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,366 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,801 |
| States of Mexico | 0 | - | 4.95 | 173,278 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,706 |
| South American Cities on the Map | 0 | - | 4.57 | 35,239 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 149,675 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,584 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,791 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,411 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,422 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,817 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,325 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,304 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,839 |
| Pixelated United States Map | 0 | - | 4.89 | 93,442 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,684 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,323 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,372 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,614 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,869 |
| U.S. States By Population | 0 | - | 4.92 | 152,328 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,361 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,837 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,522 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,747 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,859 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,270 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,547 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,495 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,014 |
| Countries with Megacities | 0 | - | 4.99 | 246,576 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,944 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,815 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,386 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,761 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,031 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.47 | 84,210 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 43,686 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,607 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.43 | 40,162 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,652 |
| Random U.S. City to State | 0 | - | 4.45 | 75,299 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,176 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,373 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,274 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,514 |
| Mexico Country Quiz | 0 | - | 4.49 | 71,960 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,638 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.66 | 21,902 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,207 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,312 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,069 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,792 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,921 |
| US States with an Empty Map | 0 | - | 5.00 | 618,591 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,664 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,541 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,883 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,084 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,784 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,836 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,829 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,447 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,551 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,212 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,605 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,599 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,791 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,804 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,922 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,452 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,486 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,492 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,535 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,024 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,133 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,720 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,643 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,487 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,199 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,703 |
| Name a City - European Countries | 0 | - | 4.92 | 64,348 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,966 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,596 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,609 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,010 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,613 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,838 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,628 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,018 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,533 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,051 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,275 |
| Cities in U.S. History #1 | 0 | - | 4.30 | 42,875 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 245,795 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,510 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,903 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,653 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,519 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,919 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,337 |
| Boroughs of New York City | 0 | - | 4.47 | 84,077 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 31,897 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,922 |
| Flags of North and South America | 0 | - | 4.99 | 366,814 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,565 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,369 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,010 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,225 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,926 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,164 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,117 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,271 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,868 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,362 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,545 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,259 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,378 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,807 |
| Largest City by Island | 0 | - | 4.87 | 71,009 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,358 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,506 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,529 |
| U.S. Cities by Hispanic Population | 0 | - | 4.31 | 37,985 |
| Megacities on a World Map | 0 | - | 4.98 | 250,833 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,773 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,834 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,900 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,650 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,115 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,410 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,248 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,228 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,572 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,537 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,773 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,169 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,132 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,318 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,756 |
| ALL California Cities | 0 | - | 4.36 | 42,811 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,386 |
| Europe Capital to Country | 0 | - | 4.99 | 247,478 |
| Asia Capital to Country | 0 | - | 4.96 | 125,711 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,402 |
| European Capitals by Map | 0 | - | 4.99 | 136,158 |
| African Capitals by Map | 0 | - | 4.99 | 132,113 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,080 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,149 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,578 |
| European Coastal Capitals | 0 | - | 4.95 | 89,715 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,171 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,655 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,689 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,407 |
| U.S. State Capital Etymology | 0 | - | 4.50 | 36,783 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,324 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,840 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,076 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,045 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,708 |
