| Five Most Inland Capital Cities by Continent | 0 | - | 4.90 | 12,254 |
| European Countries with One Border | 0 | - | 4.97 | 182,510 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,316 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,878 |
| Countries Bordering France | 0 | - | 4.83 | 401,881 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,595 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,717 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,818 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,956 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,546 |
| Random European Capital to Country | 0 | - | 4.98 | 190,622 |
| Random European Country to Capital | 0 | - | 4.93 | 164,563 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,211 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,594 |
| Countries Bordering India | 0 | - | 4.98 | 163,321 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,185 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,100 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,447 |
| Countries that Border China | 0 | - | 4.96 | 262,849 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,785 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,730 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,752 |
| World Capitals Quiz | 0 | - | 5.00 | 5,062,839 |
| Europe Capital to Country | 0 | - | 4.99 | 249,551 |
| Asia Capital to Country | 0 | - | 4.96 | 126,469 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,571 |
| European Capitals by Map | 0 | - | 4.99 | 138,546 |
| African Capitals by Map | 0 | - | 4.99 | 133,357 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,069 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,871 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,226 |
| European Coastal Capitals | 0 | - | 4.95 | 90,373 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,498 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,143 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,544 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,740 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 355,586 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 414,626 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,407 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,066 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,238 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,884 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,976 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,688 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,071 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,084 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,163 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,818 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,597 |
| Countries That Border Russia | 0 | - | 4.98 | 461,096 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,898 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,047 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,159 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,941 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,563 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 106,846 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 99,923 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,017 |
| Countries Bordering the EU | 0 | - | 4.77 | 72,758 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,333 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,044 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,662 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,970 |
| Countries with Megacities | 0 | - | 4.99 | 258,636 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,843 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,960 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,126 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,966 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,836 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,940 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,230 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,259 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,952 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,604 |
| Countries by Capital City | 0 | - | 5.00 | 67,904 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,961 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,456 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,604 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,951 |
| Moved Capital Cities | 0 | - | 4.96 | 74,048 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,914 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,203 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,442 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,089 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,145 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,226 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,421 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,518 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,243 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,989 |
| Countries that Border Poland | 0 | - | 4.99 | 172,051 |
| Merged Countries #2 | 0 | - | 4.96 | 98,894 |
| Merged Countries #6 | 0 | - | 4.90 | 73,121 |
| Merged Countries #7 | 0 | - | 4.93 | 82,442 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,538 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,376 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,663 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,255 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,355 |
| North American Sports Cities | 0 | - | 4.83 | 171,747 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,238 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,245 |
| Cities by Former Name | 0 | - | 4.83 | 91,417 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,319 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,569 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,958 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,874 |
| World Capitals by Map | 0 | - | 5.00 | 285,583 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,151 |
| Random Capital to Country | 0 | - | 4.99 | 2,587,952 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,642 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,901 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,472 |
| Random Country to Capital | 0 | - | 4.98 | 918,254 |
| Capitals Starting With H | 0 | - | 4.91 | 92,099 |
| Capitals Starting With K | 0 | - | 4.87 | 80,320 |
| Capitals Starting With L | 0 | - | 4.81 | 87,572 |
| Capitals Starting With M | 0 | - | 4.93 | 107,145 |
| Capitals Starting With P | 0 | - | 4.88 | 77,803 |
| Capitals Starting With R | 0 | - | 4.87 | 81,485 |
| Capitals Starting With S | 0 | - | 4.90 | 85,407 |
| Capitals Starting With T | 0 | - | 4.85 | 75,843 |
| Capitals Starting With W | 0 | - | 4.87 | 91,056 |
| Capitals Starting With A | 0 | - | 4.97 | 127,397 |
| Capitals Starting With B | 0 | - | 4.89 | 118,022 |
| Capitals Starting With D | 0 | - | 4.93 | 96,039 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,016 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,072 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,534 |
| Olympic Host Countries | 0 | - | 4.98 | 200,348 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,599 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,828 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 307,924 |
| The Only European Country ... | 0 | - | 4.91 | 215,981 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,733 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,767 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,578 |
| Countries of Africa | 0 | - | 5.00 | 2,530,058 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,337 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,437 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,618 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,267 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,130 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,372 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,494 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,197 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,689 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,964 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,147 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,651 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,713 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,090 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,069 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,406 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,153 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,430 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,071 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,226 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,279 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,798 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,116 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,512 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,400 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,779 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,571 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,815 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,689 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,690 |
| Former Capitals | 0 | - | 4.88 | 71,377 |
| Capital Cities Chain | 0 | - | 4.83 | 82,483 |
| Coldest World Capitals | 0 | - | 4.95 | 133,457 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,382 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,670 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,820 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,191 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,164 |
| Countries of the Middle East | 0 | - | 4.96 | 200,732 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,000 |
| Slavic Countries | 0 | - | 4.96 | 111,487 |
| African Island Countries | 0 | - | 4.96 | 101,421 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,788 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 46,381 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,772 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,888 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,538 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,651 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,273 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,157 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,847 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,637 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,422 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,525 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,509 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,083 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,968 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,384 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,995 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,970 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,806 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,071 |
