| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,949 |
| World Capitals Quiz | 0 | - | 5.00 | 5,107,588 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,695 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,946 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,132 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,655 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,068 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,655 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,735 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,811 |
| Name a Valid African Country | 0 | - | 4.98 | 155,061 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,920 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,097 |
| Random European Capital to Country | 0 | - | 4.98 | 192,173 |
| Random European Country to Capital | 0 | - | 4.93 | 165,946 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,000 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,459 |
| Random African Capital to Country | 0 | - | 4.97 | 101,371 |
| Random African Country to Capital | 0 | - | 4.95 | 71,769 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,106 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,462 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,478 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,579 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,228 |
| Countries with Megacities | 0 | - | 4.99 | 267,266 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,915 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,174 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,229 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,287 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,346 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,389 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,990 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,233 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,259 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,185 |
| Countries by Capital City | 0 | - | 5.00 | 69,441 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,881 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,257 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,985 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,837 |
| Moved Capital Cities | 0 | - | 4.96 | 74,667 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,274 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,386 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,429 |
| Which City in Europe? | 0 | - | 4.83 | 107,908 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,579 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,340 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,701 |
| Countries that Beat China | 0 | - | 4.85 | 116,771 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,625 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,362 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,494 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,019 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,474 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,347 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,179 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,696 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,920 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,244 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,641 |
| Resort Towns by Country | 0 | - | 4.30 | 40,087 |
| North American Sports Cities | 0 | - | 4.82 | 173,181 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,564 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,968 |
| Name a City - European Countries | 0 | - | 4.89 | 66,210 |
| Cities by Former Name | 0 | - | 4.83 | 92,077 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,062 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,045 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,819 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,994 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,866 |
| World Capitals by Map | 0 | - | 5.00 | 289,476 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,843 |
| Random Capital to Country | 0 | - | 4.99 | 2,602,078 |
| Random Country to Capital | 0 | - | 4.98 | 928,532 |
| Capitals Starting With H | 0 | - | 4.91 | 93,354 |
| Capitals Starting With K | 0 | - | 4.89 | 84,422 |
| Capitals Starting With M | 0 | - | 4.94 | 109,219 |
| Capitals Starting With P | 0 | - | 4.88 | 79,028 |
| Capitals Starting With R | 0 | - | 4.88 | 82,528 |
| Capitals Starting With S | 0 | - | 4.90 | 86,597 |
| Capitals Starting With T | 0 | - | 4.86 | 76,861 |
| Capitals Starting With W | 0 | - | 4.87 | 91,748 |
| Capitals Starting With A | 0 | - | 4.97 | 129,141 |
| Capitals Starting With B | 0 | - | 4.89 | 119,539 |
| Capitals Starting With D | 0 | - | 4.94 | 97,233 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,870 |
| Olympic Host Countries | 0 | - | 4.98 | 202,013 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,981 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,194 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 314,105 |
| The Only European Country ... | 0 | - | 4.91 | 219,120 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,011 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,574 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,940 |
| Countries of Africa | 0 | - | 5.00 | 2,560,810 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,230 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,868 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,793 |
| Which City in Canada? | 0 | - | 4.83 | 57,368 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,860 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,736 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,198 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,442 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,924 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,386 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,705 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,775 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,909 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,205 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,851 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,916 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,550 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,213 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,524 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,868 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,784 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,788 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,514 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,947 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,534 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,110 |
| Random European City to Country | 0 | - | 4.69 | 118,478 |
| Random Asian City to Country | 0 | - | 4.56 | 44,623 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,705 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,600 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,859 |
| Former Capitals | 0 | - | 4.88 | 71,685 |
| Europe Capital to Country | 0 | - | 4.99 | 252,170 |
| Asia Capital to Country | 0 | - | 4.96 | 127,504 |
| Capital Cities Chain | 0 | - | 4.84 | 83,402 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,028 |
| European Capitals by Map | 0 | - | 4.99 | 142,171 |
| African Capitals by Map | 0 | - | 4.99 | 142,278 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,070 |
| Coldest World Capitals | 0 | - | 4.95 | 134,174 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,953 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,910 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,212 |
| European Coastal Capitals | 0 | - | 4.95 | 91,338 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,201 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,809 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,842 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,182 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,167 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,599 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,879 |
| Countries of the Middle East | 0 | - | 4.96 | 202,990 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,212 |
| Slavic Countries | 0 | - | 4.96 | 112,398 |
| African Island Countries | 0 | - | 4.96 | 102,534 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,192 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,501 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 53,227 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,690 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,958 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,850 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,340 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,690 |
| Countries that Start with A | 0 | - | 4.98 | 2,176,158 |
| Countries that Start with B | 0 | - | 4.95 | 2,306,882 |
| Countries that Start with C | 0 | - | 4.96 | 1,831,785 |
| Countries that Start with D | 0 | - | 4.96 | 716,656 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,352 |
| Countries that Start with G | 0 | - | 4.97 | 1,511,804 |
| Countries that Start with H | 0 | - | 4.96 | 609,732 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,777 |
| Countries that Start with J | 0 | - | 4.98 | 607,123 |
| Countries that Start with K | 0 | - | 4.97 | 820,920 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,018 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,083 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,237 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,426 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,057 |
| Countries that Start with U | 0 | - | 4.97 | 908,593 |
| Countries that Start with V | 0 | - | 4.98 | 612,101 |
| Countries that Start with F | 0 | - | 4.83 | 621,424 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,476 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,190 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,644 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,565 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,567 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,996 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,852 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,101 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,832 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,389 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,943 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,183 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 40,323 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,573 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,164 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,898 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,923 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,885 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,002 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,581 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,822 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,266 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,324 |
