| New York City A-Z | 0 | - | 4.18 | 32,186 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,845 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,026 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,250 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,683 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,643 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,030 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,894 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,473 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,173 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,906 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,462 |
| Name a City - European Countries | 0 | - | 4.92 | 64,334 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,495 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,866 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 38,903 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,055 |
| Which City in California? | 0 | - | 4.56 | 31,874 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,308 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,741 |
| Europe Capital to Country | 0 | - | 4.99 | 247,433 |
| Asia Capital to Country | 0 | - | 4.96 | 125,692 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,388 |
| European Capitals by Map | 0 | - | 4.99 | 136,127 |
| African Capitals by Map | 0 | - | 4.99 | 132,106 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,060 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,132 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,571 |
| European Coastal Capitals | 0 | - | 4.95 | 89,707 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,164 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,617 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,675 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,405 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,293 |
| Official Cities in the UK | 0 | - | 4.89 | 280,386 |
| U.S. Cities A-Z by Clue | 0 | - | 4.36 | 39,650 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,639 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,077 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,202 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,454 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,168 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,058 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,745 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,612 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,372 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,070 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,134 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,678 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,682 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,411 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,737 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,156 |
| Which City in Texas? | 0 | - | 4.45 | 24,968 |
| Which City in Florida? | 0 | - | 4.61 | 10,922 |
| California A-Z | 0 | - | 4.49 | 28,702 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 77,317 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,152 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,820 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,759 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,087 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,358 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,459 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,775 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,486 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,147 |
| US States and State Capitals | 0 | - | 4.99 | 158,338 |
| Capitals of the Stans | 0 | - | 4.95 | 26,388 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,700 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,455 |
| 1M Cities by Proximity - United States | 0 | - | 4.55 | 149,662 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,578 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,167 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,786 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,386 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,220 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,390 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,142 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,988 |
| Random European Capital to Country | 0 | - | 4.98 | 189,138 |
| Random European Country to Capital | 0 | - | 4.92 | 147,389 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,332 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,361 |
| Random African Capital to Country | 0 | - | 4.97 | 99,707 |
| Random African Country to Capital | 0 | - | 4.94 | 70,196 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.62 | 34,579 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,018 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,707 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,699 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,879 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,590 |
| European Capitals by Airport Code | 0 | - | 4.92 | 35,393 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,339 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,263 |
| Random U.S. City to State | 0 | - | 4.45 | 75,279 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 39,998 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,216 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,788 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,780 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,237 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,602 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,788 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,646 |
| Which City in Europe? | 0 | - | 4.83 | 106,591 |
| Chicago A-Z | 0 | - | 4.25 | 15,453 |
| Biggest Cities in Pennsylvania | 0 | - | 4.12 | 45,187 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,534 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,685 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,455 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,591 |
| Find the City #1 | 0 | - | 4.97 | 42,072 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,882 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,612 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,564 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,548 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,338 |
| Countries by Capital City | 0 | - | 5.00 | 66,560 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,282 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,866 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,386 |
| Moved Capital Cities | 0 | - | 4.96 | 73,552 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,322 |
| Random Country to Capital | 0 | - | 4.98 | 911,199 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,500 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,899 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,650 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,514 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,525 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,048 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,799 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,313 |
| Which City in Canada? | 0 | - | 4.82 | 56,639 |
| Boroughs of New York City | 0 | - | 4.47 | 84,075 |
| Washington D.C. Trivia | 0 | - | 4.44 | 38,572 |
| Rome A-Z | 0 | - | 4.39 | 24,389 |
| Paris A-Z | 0 | - | 4.16 | 17,368 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,375 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,640 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,855 |
| Australia A-Z | 0 | - | 4.54 | 49,772 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,589 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,075 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,918 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,929 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,877 |
| North American Sports Cities | 0 | - | 4.83 | 170,844 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,903 |
| Cities in European History #1 | 0 | - | 4.63 | 133,059 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,294 |
| European Cities by Map #2 | 0 | - | 4.48 | 47,186 |
| European Cities by Map #1 | 0 | - | 4.64 | 55,554 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,127 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,798 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,009 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,153 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,022 |
| ALL California Cities | 0 | - | 4.36 | 42,807 |
| Cities in U.S. History #1 | 0 | - | 4.25 | 41,911 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,625 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,684 |
| Cities in Squares on a Map - Europe | 0 | - | 4.73 | 53,155 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,301 |
| Name a Valid World City | 0 | - | 4.83 | 70,072 |
| Cities by Former Name | 0 | - | 4.84 | 90,929 |
| Former Capitals | 0 | - | 4.88 | 71,124 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,672 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,219 |
| Capital Cities Chain | 0 | - | 4.84 | 81,875 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 245,790 |
| Coldest World Capitals | 0 | - | 4.95 | 133,020 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,869 |
| World Capitals by Map | 0 | - | 5.00 | 283,051 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,631 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,744 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,953 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 64,806 |
| Capitals Starting With H | 0 | - | 4.90 | 90,562 |
| Capitals Starting With K | 0 | - | 4.85 | 75,641 |
| Capitals Starting With L | 0 | - | 4.81 | 86,781 |
| Capitals Starting With M | 0 | - | 4.93 | 105,980 |
| Capitals Starting With P | 0 | - | 4.88 | 77,143 |
| Capitals Starting With R | 0 | - | 4.87 | 80,929 |
| Capitals Starting With S | 0 | - | 4.89 | 84,760 |
| Capitals Starting With T | 0 | - | 4.84 | 75,255 |
| Capitals Starting With W | 0 | - | 4.89 | 90,574 |
| Capitals Starting With A | 0 | - | 4.97 | 126,482 |
| Capitals Starting With B | 0 | - | 4.89 | 117,229 |
| Capitals Starting With D | 0 | - | 4.93 | 95,330 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,916 |
| U.S. State Capital Etymology | 0 | - | 4.50 | 36,782 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,323 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,837 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,337 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,556 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,383 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,874 |
| India A-Z | 0 | - | 4.42 | 33,911 |
| Italy A-Z | 0 | - | 4.49 | 57,680 |
| China A-Z | 0 | - | 4.55 | 66,703 |
| Germany A-Z | 0 | - | 4.56 | 62,304 |
| Scotland A-Z | 0 | - | 4.73 | 41,026 |
