| Island Countries | 0 | - | 4.99 | 713,147 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,942 |
| European Countries by Clue | 0 | - | 4.92 | 184,343 |
| Countries by Military Spending | 0 | - | 4.93 | 179,223 |
| Countries by Three Words #2 | 0 | - | 4.97 | 205,287 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,998,482 |
| US States Quiz | 0 | - | 5.00 | 17,029,523 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,661,937 |
| United States Map Quiz | 0 | - | 4.98 | 4,174,115 |
| World Capitals Quiz | 0 | - | 5.00 | 5,116,329 |
| Europe Map Quiz | 0 | - | 5.00 | 4,794,728 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,855,043 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,183 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,548,327 |
| Random Capital to Country | 0 | - | 4.99 | 2,605,001 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,814,939 |
| Africa Map Quiz | 0 | - | 5.00 | 2,131,265 |
| All Country Flags of the World | 0 | - | 5.00 | 3,727,971 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,129,163 |
| Countries that Start with B | 0 | - | 4.95 | 2,309,845 |
| Countries that Start with A | 0 | - | 4.98 | 2,179,205 |
| Countries of Africa | 0 | - | 5.00 | 2,566,012 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,650 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,989 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,883 |
| Countries that Start with C | 0 | - | 4.96 | 1,834,068 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,388,223 |
| Countries that Start with S | 0 | - | 4.98 | 1,765,417 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,654 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,603,199 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,319 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,827 |
| Countries that Start with M | 0 | - | 4.97 | 1,390,049 |
| Countries that Start with E | 0 | - | 4.95 | 1,387,233 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,592 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,597 |
| Countries that Start with I | 0 | - | 4.92 | 1,296,365 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,722 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,600 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,551 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,617 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,207 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,511 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 910,433 |
| Random Country to Capital | 0 | - | 4.98 | 930,694 |
| Countries that Start with T | 0 | - | 4.90 | 1,016,218 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,660 |
| Asia Map Quiz | 0 | - | 4.99 | 927,086 |
| Countries that Start with U | 0 | - | 4.97 | 909,508 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,076 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,845 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,316 |
| Counties of England | 0 | - | 4.97 | 804,629 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,579 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,646 |
| Top World Languages | 0 | - | 4.92 | 831,909 |
| Countries of South America | 0 | - | 5.00 | 934,787 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,384 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,281 |
| Countries that Start with K | 0 | - | 4.97 | 822,097 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,944 |
| US States with an Empty Map | 0 | - | 5.00 | 629,783 |
| Countries that Start with V | 0 | - | 4.98 | 612,736 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 511,171 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,486 |
| Flags of Asia Quiz | 0 | - | 4.99 | 622,300 |
| Countries that Start with D | 0 | - | 4.96 | 718,257 |
| Countries That Border Russia | 0 | - | 4.98 | 465,036 |
| One Border Countries | 0 | - | 4.98 | 472,797 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,947 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,809 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,575 |
| Countries with Four Letters | 0 | - | 4.99 | 426,644 |
| Countries with the Most Borders | 0 | - | 4.97 | 391,211 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,262 |
| Countries Bordering France | 0 | - | 4.83 | 405,454 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,145 |
| Northernmost Countries | 0 | - | 4.99 | 364,783 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,674 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,142 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,332 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,949 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,344 |
| Landlocked Countries | 0 | - | 4.99 | 427,611 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,525 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,570 |
| Australia Map Quiz | 0 | - | 4.95 | 346,578 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,630 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,327 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,614 |
| Countries that Start with H | 0 | - | 4.96 | 610,888 |
| Countries that Start with J | 0 | - | 4.98 | 608,224 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,589 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,451 |
| "Land" Countries | 0 | - | 4.98 | 339,143 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,258 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 292,514 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,306 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,770 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,350 |
| Flags of Africa Quiz | 0 | - | 5.00 | 479,497 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,305 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,656 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,768 |
| Countries with Z | 0 | - | 4.98 | 293,146 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,057 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,594 |
| Flags of North and South America | 0 | - | 4.99 | 378,394 |
| EU Countries Quiz | 0 | - | 4.99 | 279,120 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,754 |
| Countries that Border China | 0 | - | 4.96 | 264,602 |
| French-Speaking Countries | 0 | - | 4.85 | 271,969 |
| Countries with Five Letters | 0 | - | 4.96 | 284,805 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,363 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 292,075 |
| Every Country Shape | 0 | - | 5.00 | 472,799 |
| Europe Capital to Country | 0 | - | 4.99 | 252,700 |
| Longest International Borders | 0 | - | 4.99 | 266,065 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 278,250 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,919 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,936 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,954 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,393 |
| Megacities on a World Map | 0 | - | 4.98 | 257,604 |
| World Currency Quiz | 0 | - | 4.92 | 307,808 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,603 |
| NATO Countries | 0 | - | 4.98 | 284,203 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,779 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,447 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 227,130 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,697 |
| Official Cities in the UK | 0 | - | 4.89 | 287,017 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,898 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,737 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,438 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,828 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,097 |
| Countries with Megacities | 0 | - | 4.99 | 268,096 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,961 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,011 |
| World Capitals by Map | 0 | - | 5.00 | 290,118 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,493 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,249 |
| World's Busiest Airports | 0 | - | 4.96 | 238,162 |
| Country Chain | 0 | - | 4.96 | 218,719 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,333 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,461 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,240 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 197,246 |
| Independence from Whom | 0 | - | 4.99 | 213,506 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,734 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,079 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,203 |
| Countries with Six Letters | 0 | - | 4.94 | 215,082 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,411 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,826 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,518 |
| Flags of Oceania | 0 | - | 5.00 | 263,666 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,189 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,614 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,344 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,703 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,763 |
| Countries in their Native Language | 0 | - | 4.99 | 200,019 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,759 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 175,017 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,080 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,485 |
| Monarchies of the World | 0 | - | 4.94 | 170,628 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,771 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,275 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,861 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,299 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,049 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,336 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,232 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,785 |
| Countries That End in Y | 0 | - | 4.91 | 186,198 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,043 |
| Olympic Host Countries | 0 | - | 4.98 | 202,330 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,031 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,379 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,868 |
| Every European Country Shape | 0 | - | 4.96 | 203,326 |
| Countries of the Middle East | 0 | - | 4.96 | 203,351 |
| Countries by Official Language | 0 | - | 4.95 | 196,305 |
| Countries Closest to Australia | 0 | - | 4.99 | 168,015 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,366 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,232 |
| Counties of Ireland | 0 | - | 4.92 | 197,759 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,949 |
| Countries Bordering India | 0 | - | 4.98 | 163,913 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,494 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,241 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,527 |
| Countries with the Most Forest | 0 | - | 4.88 | 148,326 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,839 |
| European Cities by Clue | 0 | - | 4.70 | 89,226 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,469 |
| Islands by Country #2 | 0 | - | 4.80 | 78,036 |
