| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,472 |
| European Countries with One Border | 0 | - | 4.97 | 183,367 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,135 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,291 |
| Countries Bordering France | 0 | - | 4.83 | 404,060 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,109 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,211 |
| Africa Capitals Quiz | 0 | - | 4.99 | 741,326 |
| Asia Capitals Quiz | 0 | - | 4.98 | 696,337 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,900 |
| Random European Capital to Country | 0 | - | 4.98 | 191,733 |
| Random European Country to Capital | 0 | - | 4.93 | 165,590 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,839 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,195 |
| Countries Bordering India | 0 | - | 4.98 | 163,669 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,771 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,619 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,711 |
| Countries that Border China | 0 | - | 4.96 | 263,798 |
| Countries Bordering Kenya | 0 | - | 4.87 | 63,018 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,856 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,114 |
| World Capitals Quiz | 0 | - | 5.00 | 5,091,855 |
| Europe Capital to Country | 0 | - | 4.99 | 251,363 |
| Asia Capital to Country | 0 | - | 4.96 | 127,087 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,511 |
| European Capitals by Map | 0 | - | 4.99 | 141,077 |
| African Capitals by Map | 0 | - | 4.99 | 140,688 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,430 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,542 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,902 |
| European Coastal Capitals | 0 | - | 4.95 | 91,010 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,024 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,460 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,030 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,008 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 356,338 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 416,557 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,472 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,133 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,901 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,337 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,713 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,189 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,405 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,716 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,518 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,824 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,594,087 |
| Countries That Border Russia | 0 | - | 4.98 | 463,595 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,387 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,398 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,500 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,595 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,067 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 107,190 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 100,383 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,406 |
| Countries Bordering the EU | 0 | - | 4.78 | 73,400 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,562 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,473 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,511 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,329 |
| Countries with Megacities | 0 | - | 4.99 | 265,553 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,125 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,691 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,388 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,763 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,852 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,808 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,729 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,921 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,814 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,658 |
| Countries by Capital City | 0 | - | 5.00 | 68,940 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,559 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,980 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,743 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,567 |
| Moved Capital Cities | 0 | - | 4.96 | 74,470 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,986 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,984 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,682 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,834 |
| Countries Bordering Iran | 0 | - | 4.83 | 95,825 |
| Countries that Border Iraq | 0 | - | 4.97 | 108,905 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,995 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 133,373 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,818 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,686 |
| Countries that Border Poland | 0 | - | 4.99 | 172,819 |
| Merged Countries #2 | 0 | - | 4.96 | 99,370 |
| Merged Countries #6 | 0 | - | 4.90 | 73,587 |
| Merged Countries #7 | 0 | - | 4.93 | 82,941 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,070 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,510 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,359 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,684 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,904 |
| North American Sports Cities | 0 | - | 4.83 | 172,846 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,461 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,731 |
| Cities by Former Name | 0 | - | 4.83 | 91,848 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,566 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,847 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,090 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,562 |
| World Capitals by Map | 0 | - | 5.00 | 288,272 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,630 |
| Random Capital to Country | 0 | - | 4.99 | 2,596,986 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,081 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,197 |
| Random Country to Capital | 0 | - | 4.98 | 924,594 |
| Capitals Starting With H | 0 | - | 4.91 | 92,858 |
| Capitals Starting With K | 0 | - | 4.88 | 83,908 |
| Capitals Starting With L | 0 | - | 4.81 | 88,378 |
| Capitals Starting With M | 0 | - | 4.93 | 108,313 |
| Capitals Starting With P | 0 | - | 4.88 | 78,495 |
| Capitals Starting With R | 0 | - | 4.87 | 82,096 |
| Capitals Starting With S | 0 | - | 4.90 | 86,084 |
| Capitals Starting With T | 0 | - | 4.85 | 76,425 |
| Capitals Starting With W | 0 | - | 4.87 | 91,469 |
| Capitals Starting With A | 0 | - | 4.97 | 128,469 |
| Capitals Starting With B | 0 | - | 4.89 | 118,883 |
| Capitals Starting With D | 0 | - | 4.93 | 96,767 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,427 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,230 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,057 |
| Olympic Host Countries | 0 | - | 4.98 | 201,440 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,487 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 116,476 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 311,871 |
| The Only European Country ... | 0 | - | 4.91 | 218,006 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,197 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,985 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,801 |
| Countries of Africa | 0 | - | 5.00 | 2,550,158 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,579 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,050 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,628 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 145,120 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,635 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,079 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,066 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,778 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,947 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,348 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,480 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,623 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,395 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,458 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,642 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,367 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,035 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,395 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,704 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,540 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,287 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,582 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,008 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,201 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,667 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,149 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,614 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,881 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,666 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,417 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,344 |
| Former Capitals | 0 | - | 4.88 | 71,580 |
| Capital Cities Chain | 0 | - | 4.84 | 83,108 |
| Coldest World Capitals | 0 | - | 4.95 | 134,019 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,899 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,255 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,477 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,332,512 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,942 |
| Countries of the Middle East | 0 | - | 4.96 | 202,072 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,798 |
| Slavic Countries | 0 | - | 4.96 | 112,082 |
| African Island Countries | 0 | - | 4.96 | 102,133 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,027 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,196 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,371 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,565 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,027,674 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,448 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,001 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,173 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,850 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,913 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,182 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,254 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,816 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,569 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,747 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,214 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,963 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,618 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,871 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,875 |
