| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,637 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,122 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,119 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,150 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,627 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,720 |
| US States and State Capitals | 0 | - | 4.99 | 158,196 |
| Random U.S. States on a Map | 0 | - | 4.96 | 620,953 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,076 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,330 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,514 |
| Random European Capital to Country | 0 | - | 4.98 | 189,088 |
| Random European Country to Capital | 0 | - | 4.92 | 147,361 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,300 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,341 |
| Random African Capital to Country | 0 | - | 4.97 | 99,684 |
| Random African Country to Capital | 0 | - | 4.94 | 70,163 |
| Which City in California? | 0 | - | 4.56 | 31,867 |
| U.S. Senators by State | 0 | - | 4.44 | 39,736 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,291 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,125 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,759 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,968 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,882 |
| Name a City - European Countries | 0 | - | 4.92 | 64,293 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,591 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,040 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,219 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,583 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,759 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,452 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,839 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,372 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,269 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,685 |
| Europe Capital to Country | 0 | - | 4.99 | 247,355 |
| Asia Capital to Country | 0 | - | 4.96 | 125,653 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,335 |
| European Capitals by Map | 0 | - | 4.99 | 136,024 |
| African Capitals by Map | 0 | - | 4.99 | 132,082 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,930 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,002 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,091 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,542 |
| European Coastal Capitals | 0 | - | 4.95 | 89,676 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,155 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,477 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,608 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,388 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,250 |
| 20 Chinese Cities Everyone Should Know | 0 | - | 4.81 | 38,956 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,281 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,508 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,578 |
| Official Cities in the UK | 0 | - | 4.89 | 280,269 |
| Name a City - U.S. States | 0 | - | 4.41 | 26,525 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,193 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,614 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,571 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,351 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,042 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,094 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,655 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,387 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,721 |
| Which City in New York State? | 0 | - | 4.60 | 15,854 |
| Which City in Texas? | 0 | - | 4.45 | 24,963 |
| Which City in Florida? | 0 | - | 4.61 | 10,921 |
| US States Quiz | 0 | - | 5.00 | 16,684,566 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 87,954 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,516,835 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,129 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,450 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,112 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,734 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,734 |
| World Capitals Quiz | 0 | - | 5.00 | 5,027,205 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,322 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,622 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,313 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,578 |
| Capitals of the Stans | 0 | - | 4.95 | 26,378 |
| U.S. City Nicknames | 0 | - | 4.25 | 103,444 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,678 |
| 1M Cities by Proximity - United States | 0 | - | 4.55 | 149,628 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,555 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,773 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,586 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,344 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,781 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,161 |
| Word Scramble - European Capitals | 0 | - | 4.72 | 93,718 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,965 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,194 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,668 |
| Which City in Europe? | 0 | - | 4.83 | 106,564 |
| New York City A-Z | 0 | - | 4.18 | 32,177 |
| Vietnam War Countries | 0 | - | 4.83 | 93,548 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,259 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,729 |
| Draw All US State Borders | 0 | - | 4.99 | 133,266 |
| US States with an Empty Map | 0 | - | 5.00 | 618,319 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,622 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,379,253 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,267 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,320 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,586 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,542 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,806 |
| U.S. States By Population | 0 | - | 4.92 | 152,289 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,297 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,796 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,485 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,822 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,471 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,726 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,807 |
| European Capitals by Airport Code | 0 | - | 4.92 | 35,360 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,765 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,804 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,525 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,631 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,451 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,615 |
| Random U.S. City to State | 0 | - | 4.45 | 75,236 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 39,983 |
| Find the City #1 | 0 | - | 4.97 | 42,048 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,135 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,839 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,587 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,538 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,504 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,265 |
| Countries by Capital City | 0 | - | 5.00 | 66,503 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,242 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,833 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,082 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,358 |
| Moved Capital Cities | 0 | - | 4.96 | 73,533 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,472 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 62,184 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,885 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,635 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,495 |
| US State Capitals - One Minute Sprint | 0 | - | 4.06 | 182,473 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,635 |
| Which City in Canada? | 0 | - | 4.82 | 56,625 |
| Boroughs of New York City | 0 | - | 4.47 | 84,067 |
| Washington D.C. Trivia | 0 | - | 4.44 | 38,467 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 517,767 |
| U.S. State Flags | 0 | - | 4.89 | 166,799 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,493 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,223 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 617,654 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 90,966 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,049 |
| North American Sports Cities | 0 | - | 4.83 | 170,796 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,890 |
| Cities in European History #1 | 0 | - | 4.63 | 132,999 |
| European Cities by Map #2 | 0 | - | 4.48 | 47,179 |
| European Cities by Map #1 | 0 | - | 4.64 | 55,548 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,794 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,003 |
| Cities in U.S. History #1 | 0 | - | 4.25 | 37,581 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,657 |
| Cities in Squares on a Map - Europe | 0 | - | 4.73 | 53,133 |
| Random Cities Near Paris on a Map | 0 | - | 4.55 | 39,286 |
| Name a Valid World City | 0 | - | 4.83 | 70,028 |
| Cities by Former Name | 0 | - | 4.84 | 90,891 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,652 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,202 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 245,764 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,821 |
| World Capitals by Map | 0 | - | 5.00 | 282,933 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,612 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,772 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 200,178 |
| Random Country to Capital | 0 | - | 4.98 | 910,805 |
| Capitals Starting With H | 0 | - | 4.90 | 89,984 |
| Capitals Starting With K | 0 | - | 4.85 | 75,581 |
| Capitals Starting With L | 0 | - | 4.81 | 86,717 |
| Capitals Starting With M | 0 | - | 4.93 | 105,902 |
| Capitals Starting With P | 0 | - | 4.88 | 77,089 |
| Capitals Starting With R | 0 | - | 4.87 | 80,879 |
| Capitals Starting With S | 0 | - | 4.89 | 84,703 |
| Capitals Starting With T | 0 | - | 4.84 | 75,207 |
| Capitals Starting With W | 0 | - | 4.89 | 90,521 |
| Capitals Starting With A | 0 | - | 4.97 | 126,403 |
| Capitals Starting With B | 0 | - | 4.89 | 117,166 |
| Capitals Starting With D | 0 | - | 4.93 | 95,254 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.62 | 34,574 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,014 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,899 |
| U.S. State Capital Etymology | 0 | - | 4.50 | 36,778 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,836 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,336 |
| Which City in Germany? | 0 | - | 4.50 | 134,907 |
| Which City in Italy? | 0 | - | 4.55 | 78,119 |
| Which City in France? | 0 | - | 4.64 | 72,362 |
| Which City in Spain? | 0 | - | 4.50 | 49,412 |
