| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,299 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,713 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,233 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,877 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,050 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,511 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,874 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,378 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,315 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,361 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,305 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,111 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,707 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 149,675 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,586 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,791 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,337 |
| US States Quiz | 0 | - | 5.00 | 16,694,177 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,211 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,592 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,652 |
| Random U.S. City to State | 0 | - | 4.45 | 75,300 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,006 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,176 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,970 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,610 |
| Name a City - European Countries | 0 | - | 4.92 | 64,350 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,412 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,745 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,689 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,324 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,373 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,616 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,870 |
| U.S. States By Population | 0 | - | 4.92 | 152,329 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,364 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,837 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,523 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,747 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,860 |
| Cities in U.S. History #1 | 0 | - | 4.30 | 42,904 |
| 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 |
| Boroughs of New York City | 0 | - | 4.47 | 84,083 |
| US States with an Empty Map | 0 | - | 5.00 | 618,603 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,318 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,758 |
| Europe Capital to Country | 0 | - | 4.99 | 247,495 |
| 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 | 136,165 |
| African Capitals by Map | 0 | - | 4.99 | 132,116 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,084 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,149 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,579 |
| European Coastal Capitals | 0 | - | 4.95 | 89,715 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,173 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,664 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,690 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,408 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,919 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,665 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,542 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,887 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,134 |
| ALL California Cities | 0 | - | 4.36 | 42,811 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,386 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,728 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,614 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,018 |
| Official Cities in the UK | 0 | - | 4.89 | 280,421 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,766 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,768 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,635 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,384 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,081 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,146 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,683 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,416 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,745 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 128,782 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,031 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,121 |
| 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 |
| Capitals of the Stans | 0 | - | 4.95 | 26,397 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,780 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,456 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,275 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,423 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,169 |
| American TV Show Settings | 0 | - | 4.35 | 30,586 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,161 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,852 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,596 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,791 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,648 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,559 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,143 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.48 | 26,003 |
| US States and State Capitals | 0 | - | 4.99 | 158,403 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,622 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,798 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,759 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,804 |
| States of Mexico | 0 | - | 4.95 | 173,286 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,847 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,270 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,231 |
| 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 | 78,697 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,741 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,441 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,508 |
| South American Cities on the Map | 0 | - | 4.57 | 35,239 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,706 |
| California Cities starting with SAN or SANTA | 0 | - | 4.33 | 18,434 |
| Word Scramble - U.S. Cities | 0 | - | 4.13 | 19,629 |
| U.S. City Name Etymologies | 0 | - | 4.15 | 21,470 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,896 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,622 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,578 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,568 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,373 |
| Countries by Capital City | 0 | - | 5.00 | 66,576 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,295 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,876 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,261 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,395 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,179 |
| Moved Capital Cities | 0 | - | 4.96 | 73,561 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,999 |
| Random European Capital to Country | 0 | - | 4.98 | 189,154 |
| Random European Country to Capital | 0 | - | 4.92 | 147,400 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,341 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,374 |
| Random African Capital to Country | 0 | - | 4.97 | 99,713 |
| Random African Country to Capital | 0 | - | 4.94 | 70,199 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,152 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,425 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,819 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,325 |
| Pixelated United States Map | 0 | - | 4.89 | 93,443 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,792 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,248 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,608 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,800 |
| Which City in Europe? | 0 | - | 4.83 | 106,598 |
| Neighborhoods of New York City | 0 | - | 4.37 | 30,224 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,376 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,517 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,832 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,070 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,792 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,921 |
| New England States | 0 | - | 4.51 | 59,704 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,469 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,881 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,301 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,621 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,655 |
| U.S. States by Borders | 0 | - | 4.63 | 35,063 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,448 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,228 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,124 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,088 |
| North American Sports Cities | 0 | - | 4.83 | 170,860 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,906 |
| Cities in European History #1 | 0 | - | 4.63 | 133,070 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,538 |
| European Cities by Map #2 | 0 | - | 4.48 | 47,187 |
| European Cities by Map #1 | 0 | - | 4.64 | 55,556 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,800 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,457 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,009 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,698 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,163 |
| Name a Valid World City | 0 | - | 4.83 | 70,090 |
| Cities by Former Name | 0 | - | 4.84 | 90,940 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,673 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,223 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,890 |
| World Capitals by Map | 0 | - | 5.00 | 283,098 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,641 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,527 |
| Random Country to Capital | 0 | - | 4.98 | 911,364 |
| Capitals Starting With H | 0 | - | 4.90 | 90,676 |
| Capitals Starting With K | 0 | - | 4.85 | 75,655 |
| Capitals Starting With L | 0 | - | 4.81 | 86,799 |
| Capitals Starting With M | 0 | - | 4.93 | 106,007 |
| Capitals Starting With P | 0 | - | 4.88 | 77,159 |
| Capitals Starting With R | 0 | - | 4.87 | 80,948 |
| Capitals Starting With S | 0 | - | 4.89 | 84,779 |
| Capitals Starting With T | 0 | - | 4.84 | 75,268 |
| Capitals Starting With W | 0 | - | 4.89 | 90,587 |
| Capitals Starting With A | 0 | - | 4.97 | 126,506 |
