| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,445 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,293 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,334 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,324 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,126 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,948 |
| US States and State Capitals | 0 | - | 4.99 | 163,790 |
| Random U.S. States on a Map | 0 | - | 4.96 | 628,298 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,603 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,757 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,694,037 |
| Random European Capital to Country | 0 | - | 4.98 | 191,586 |
| Random European Country to Capital | 0 | - | 4.93 | 165,492 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,770 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,079 |
| Random African Capital to Country | 0 | - | 4.97 | 100,990 |
| Random African Country to Capital | 0 | - | 4.94 | 71,465 |
| Which City in California? | 0 | - | 4.56 | 32,095 |
| U.S. Senators by State | 0 | - | 4.44 | 40,019 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,046 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,689 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,483 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,048 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,283 |
| Name a City - European Countries | 0 | - | 4.90 | 65,769 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,619 |
| Asia Capitals Quiz | 0 | - | 4.98 | 695,479 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,001 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 51,151 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,042 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,357 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,210 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 508,248 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,072 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,537 |
| Europe Capital to Country | 0 | - | 4.99 | 251,127 |
| Asia Capital to Country | 0 | - | 4.96 | 126,964 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,365 |
| European Capitals by Map | 0 | - | 4.99 | 140,493 |
| African Capitals by Map | 0 | - | 4.99 | 137,847 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,085 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,966 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,394 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,730 |
| European Coastal Capitals | 0 | - | 4.95 | 90,917 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,710 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,164 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,834 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,967 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,995 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,509 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,628 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,989 |
| Official Cities in the UK | 0 | - | 4.89 | 284,877 |
| Name a City - U.S. States | 0 | - | 4.41 | 28,614 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,500 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,869 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,794 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,269 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,626 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,097 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,360 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,624 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,467 |
| Which City in New York State? | 0 | - | 4.60 | 16,016 |
| Which City in Texas? | 0 | - | 4.45 | 25,123 |
| Which City in Florida? | 0 | - | 4.61 | 11,005 |
| US States Quiz | 0 | - | 5.00 | 16,932,253 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,292 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,547,025 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,929 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,636 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,507 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 149,724 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,748 |
| World Capitals Quiz | 0 | - | 5.00 | 5,088,243 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,326 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,346 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,601 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,090 |
| Capitals of the Stans | 0 | - | 4.95 | 26,971 |
| U.S. City Nicknames | 0 | - | 4.25 | 103,763 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,876 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,453 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,924 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,061 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,192 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,592,641 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,889 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,063 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,651 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,334 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,852 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,819 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,714 |
| Which City in Europe? | 0 | - | 4.83 | 107,651 |
| New York City A-Z | 0 | - | 4.18 | 32,339 |
| Vietnam War Countries | 0 | - | 4.82 | 94,404 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,991 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,090 |
| Draw All US State Borders | 0 | - | 4.99 | 139,061 |
| US States with an Empty Map | 0 | - | 5.00 | 626,440 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,186 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,394,574 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,797 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,731 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,502 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,429 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,750 |
| U.S. States By Population | 0 | - | 4.92 | 153,812 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,803 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,636 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,912 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,622 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,577 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,357 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,837 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,492 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,224 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,984 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,843 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,700 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,590 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,827 |
| Random U.S. City to State | 0 | - | 4.45 | 76,639 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,352 |
| Find the City #1 | 0 | - | 4.97 | 43,057 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,912 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,656 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,628 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,769 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,625 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,479 |
| Countries by Capital City | 0 | - | 5.00 | 68,769 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,452 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,890 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,465 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,482 |
| Moved Capital Cities | 0 | - | 4.96 | 74,403 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,673 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 114,180 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 62,554 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,085 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,819 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,732 |
| US State Capitals - One Minute Sprint | 0 | - | 4.05 | 184,369 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,897 |
| Which City in Canada? | 0 | - | 4.83 | 57,184 |
| Boroughs of New York City | 0 | - | 4.47 | 84,765 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,062 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 523,954 |
| U.S. State Flags | 0 | - | 4.89 | 171,565 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,727 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,753 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 630,919 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,412 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,132 |
| North American Sports Cities | 0 | - | 4.83 | 172,732 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,430 |
| Cities in European History #1 | 0 | - | 4.63 | 134,284 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,394 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,816 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,912 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,172 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,475 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,652 |
| Cities in Squares on a Map - Europe | 0 | - | 4.70 | 54,165 |
| Random Cities Near Paris on a Map | 0 | - | 4.55 | 39,655 |
| Name a Valid World City | 0 | - | 4.83 | 71,559 |
| Cities by Former Name | 0 | - | 4.83 | 91,789 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,523 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,800 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,601 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,484 |
| World Capitals by Map | 0 | - | 5.00 | 287,824 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,546 |
| Random Capital to Country | 0 | - | 4.99 | 2,595,967 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 201,551 |
| Random Country to Capital | 0 | - | 4.98 | 923,743 |
| Capitals Starting With H | 0 | - | 4.91 | 92,796 |
| Capitals Starting With K | 0 | - | 4.88 | 83,852 |
| Capitals Starting With L | 0 | - | 4.81 | 88,315 |
| Capitals Starting With M | 0 | - | 4.93 | 108,186 |
| Capitals Starting With P | 0 | - | 4.88 | 78,427 |
| Capitals Starting With R | 0 | - | 4.87 | 82,045 |
| Capitals Starting With S | 0 | - | 4.90 | 86,030 |
| Capitals Starting With T | 0 | - | 4.85 | 76,374 |
| Capitals Starting With W | 0 | - | 4.87 | 91,432 |
| Capitals Starting With A | 0 | - | 4.97 | 128,387 |
| Capitals Starting With B | 0 | - | 4.89 | 118,803 |
| Capitals Starting With D | 0 | - | 4.93 | 96,702 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,786 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,289 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,128 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,006 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,009 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,418 |
| 20 Chinese Cities Everyone Should Know | 0 | - | 4.80 | 39,651 |
| Which City in Germany? | 0 | - | 4.50 | 136,925 |
| Which City in Italy? | 0 | - | 4.68 | 90,359 |
