| European Countries with One Border | 0 | - | 4.96 | 150,659 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 144,564 |
| Asian Countries with the Fewest Borders | 0 | - | 4.82 | 88,427 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.89 | 81,662 |
| Countries Bordering France | 0 | - | 4.87 | 357,599 |
| Countries Bordering Germany | 0 | - | 4.99 | 340,920 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,057 |
| Africa Capitals Quiz | 0 | - | 4.99 | 635,176 |
| Asia Capitals Quiz | 0 | - | 4.98 | 594,794 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 76,730 |
| Random European Capital to Country | 0 | - | 4.97 | 152,863 |
| Random European Country to Capital | 0 | - | 4.92 | 135,078 |
| Random Asian Country to Capital | 0 | - | 4.94 | 85,704 |
| Random Asian Capital to Country | 0 | - | 4.97 | 89,254 |
| Countries Bordering India | 0 | - | 4.98 | 156,104 |
| Countries Bordering Austria | 0 | - | 4.97 | 110,095 |
| Countries Bordering Tanzania | 0 | - | 4.97 | 66,341 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 60,227 |
| Countries that Border China | 0 | - | 4.96 | 233,236 |
| Countries Bordering Kenya | 0 | - | 4.86 | 58,068 |
| Countries Bordering South Africa | 0 | - | 4.97 | 78,346 |
| Countries Bordering Italy | 0 | - | 4.92 | 78,814 |
| World Capitals Quiz | 0 | - | 5.00 | 4,502,215 |
| Europe Capital to Country | 0 | - | 4.99 | 220,138 |
| Asia Capital to Country | 0 | - | 4.96 | 105,749 |
| EU Capitals with No Hints | 0 | - | 4.96 | 124,583 |
| European Capitals by Map | 0 | - | 4.99 | 93,752 |
| African Capitals by Map | 0 | - | 4.99 | 110,794 |
| Asian Capitals by Map | 0 | - | 4.98 | 47,176 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 78,983 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.95 | 72,151 |
| European Coastal Capitals | 0 | - | 4.95 | 77,240 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.90 | 46,616 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 228,499 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.91 | 193,944 |
| Capitals of Mediterranean Countries | 0 | - | 4.96 | 76,114 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.44 | 336,680 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.58 | 376,778 |
| South America Capitals Quiz | 0 | - | 5.00 | 419,903 |
| North America Capitals Quiz | 0 | - | 4.99 | 186,216 |
| African Capitals - Map Quiz | 0 | - | 4.95 | 52,236 |
| Top 10 Most Remote European Capitals | 0 | - | 4.85 | 84,304 |
| European Capitals - Map Quiz | 0 | - | 4.98 | 105,347 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 78,004 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 66,942 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 51,307 |
| European Capitals Ending in N | 0 | - | 4.92 | 73,996 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,384,411 |
| Countries That Border Russia | 0 | - | 4.98 | 426,285 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 73,676 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 61,726 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 109,271 |
| Richest Countries Bordering Each Other | 0 | - | 4.98 | 128,108 |
| Countries by Bordering Flags #1 | 0 | - | 4.92 | 94,087 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.90 | 87,190 |
| Countries by Bordering Flags #2 | 0 | - | 4.87 | 75,447 |
| Countries Bordering the EU | 0 | - | 4.72 | 53,683 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.96 | 63,001 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,312,469 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,846 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,116 |
| Countries with Megacities | 0 | - | 4.99 | 197,554 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,811 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,108 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 95,620 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,054 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,248 |
| Global Cities on a World Map | 0 | - | 4.92 | 91,512 |
| Northernmost Capital Cities | 0 | - | 4.98 | 94,084 |
| Most Remote Capital Cities | 0 | - | 4.90 | 43,770 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 34,414 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 90,895 |
| Same Letter Country and Capital | 0 | - | 4.99 | 127,628 |
| Countries by Capital City | 0 | - | 4.99 | 49,509 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 65,972 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 105,128 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 73,026 |
| Moved Capital Cities | 0 | - | 4.94 | 52,317 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,886 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 116,166 |
| Most Guessed European Capitals | 0 | - | 4.89 | 96,493 |
| Countries that Border Hungary | 0 | - | 4.98 | 96,278 |
| Countries Bordering Iran | 0 | - | 4.83 | 88,283 |
| Countries that Border Iraq | 0 | - | 4.97 | 101,688 |
| Countries Bordering Myanmar | 0 | - | 4.86 | 71,072 |
| Countries Bordering Saudi Arabia | 0 | - | 4.94 | 112,010 |
| Countries Bordering Serbia | 0 | - | 4.95 | 83,157 |
| Countries Bordering Turkey | 0 | - | 4.98 | 109,002 |
| Countries that Border Poland | 0 | - | 4.99 | 158,706 |
| Merged Countries #2 | 0 | - | 4.96 | 89,697 |
| Merged Countries #4 | 0 | - | 4.87 | 84,388 |
| Merged Countries #6 | 0 | - | 4.89 | 65,231 |
| Merged Countries #7 | 0 | - | 4.93 | 74,387 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,196 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 245,220 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,151 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 91,276 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 69,980 |
| Summer Olympic City Bids | 0 | - | 4.93 | 37,153 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.86 | 91,372 |
| Cities by Former Name | 0 | - | 4.86 | 71,438 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,572 |
| Nearest Capital City #1 | 0 | - | 4.82 | 52,482 |
| World Capitals by Proximity | 0 | - | 4.88 | 299,549 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 38,142 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 48,868 |
| World Capitals by Map | 0 | - | 5.00 | 242,031 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 50,338 |
| Random Capital to Country | 0 | - | 4.99 | 2,362,887 |
| Random African Capitals on a Map | 0 | - | 4.95 | 48,159 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 45,076 |
| Random European Capitals on a Map | 0 | - | 4.97 | 106,976 |
| Random Country to Capital | 0 | - | 4.98 | 803,380 |
| World Capitals By Letter - H | 0 | - | 4.85 | 71,234 |
| World Capitals By Letter - K | 0 | - | 4.82 | 65,903 |
| World Capitals By Letter - M | 0 | - | 4.90 | 85,967 |
| World Capitals By Letter - P | 0 | - | 4.86 | 67,065 |
| World Capitals By Letter - R | 0 | - | 4.88 | 72,291 |
| World Capitals By Letter - S | 0 | - | 4.89 | 74,527 |
| World Capitals By Letter - T | 0 | - | 4.81 | 66,438 |
| World Capitals By Letter - W | 0 | - | 4.88 | 82,240 |
| World Capitals By Letter - A | 0 | - | 4.96 | 104,636 |
| World Capitals By Letter - B | 0 | - | 4.84 | 96,868 |
| World Capitals By Letter - D | 0 | - | 4.91 | 78,985 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 79,855 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.85 | 39,109 |
| Countries That Use the Euro | 0 | - | 4.92 | 63,269 |
| Olympic Host Countries | 0 | - | 4.98 | 161,965 |
| 10 Easternmost Countries in Europe | 0 | - | 4.85 | 92,504 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 233,756 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,174 |
| The Only European Country ... | 0 | - | 4.94 | 178,853 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 195,487 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 86,667 |
| Countries of Africa | 0 | - | 5.00 | 2,171,154 |
| Countries Bordering Spain | 0 | - | 4.50 | 64,445 |
| Countries Bordering Brazil | 0 | - | 4.96 | 123,872 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 125,935 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.87 | 89,255 |
| Countries of Europe by Population | 0 | - | 4.98 | 127,209 |
| Most Populous Countries by Year | 0 | - | 4.81 | 93,841 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,793 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,756 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,468 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,612 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 70,333 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,681 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 205,441 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,679 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,672 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,192 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,706 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,994 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 87,023 |
| Biggest City by Body of Water | 0 | - | 4.52 | 38,910 |
| Global Cities Quiz | 0 | - | 4.64 | 157,074 |
| Southernmost Major Cities | 0 | - | 4.41 | 45,278 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.46 | 68,492 |
| Cities with the Most Foreign Embassies | 0 | - | 4.66 | 45,324 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.41 | 35,011 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.91 | 89,808 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.94 | 80,049 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 193,558 |
| Most-Visited Cities in Europe | 0 | - | 4.92 | 56,665 |
| Cities with the Biggest Economies | 0 | - | 4.92 | 118,576 |
| Five Most Guessed Cities by Continent | 0 | - | 4.97 | 104,612 |
| Former Capitals Quiz | 0 | - | 4.81 | 58,042 |
| Capital Cities Chain | 0 | - | 4.86 | 71,479 |
| Coldest World Capitals | 0 | - | 4.96 | 128,068 |
| Capital Cities with Spanish Names | 0 | - | 4.85 | 63,005 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 78,781 |
| Random State Capital to U.S. State | 0 | - | 4.86 | 74,796 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,186,571 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 19,566 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 186,639 |
| Countries of the Middle East | 0 | - | 4.96 | 173,807 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 74,859 |
| Slavic Countries | 0 | - | 4.96 | 100,642 |
| African Island Countries | 0 | - | 4.96 | 89,419 |
| Straight Shot to Antarctica | 0 | - | 4.90 | 37,375 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 143,848 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 145,225 |
| Countries of North America Quiz | 0 | - | 5.00 | 880,923 |
| Countries of Asia with Two or More Words | 0 | - | 4.95 | 111,118 |
| Asian Countries Ending in "IA" | 0 | - | 4.94 | 93,701 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 119,480 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 127,020 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 197,778 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 160,619 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 125,738 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 107,098 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 132,346 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 138,494 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 104,769 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 130,958 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 88,791 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 96,651 |
| Monarchies Bordering Monarchies | 0 | - | 4.86 | 55,755 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 205,511 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 161,067 |
