| Island Countries | 0 | - | 4.99 | 713,156 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,944 |
| European Countries by Clue | 0 | - | 4.92 | 184,343 |
| Countries by Military Spending | 0 | - | 4.93 | 179,229 |
| Countries by Three Words #2 | 0 | - | 4.97 | 205,297 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,999,975 |
| US States Quiz | 0 | - | 5.00 | 17,029,937 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,662,012 |
| United States Map Quiz | 0 | - | 4.98 | 4,174,172 |
| World Capitals Quiz | 0 | - | 5.00 | 5,116,480 |
| Europe Map Quiz | 0 | - | 5.00 | 4,794,814 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,855,147 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,234 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,548,366 |
| Random Capital to Country | 0 | - | 4.99 | 2,605,042 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,815,063 |
| Africa Map Quiz | 0 | - | 5.00 | 2,131,287 |
| All Country Flags of the World | 0 | - | 5.00 | 3,728,204 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,129,197 |
| Countries that Start with B | 0 | - | 4.95 | 2,309,882 |
| Countries that Start with A | 0 | - | 4.98 | 2,179,248 |
| Countries of Africa | 0 | - | 5.00 | 2,566,087 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,657 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,701,025 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,904 |
| Countries that Start with C | 0 | - | 4.96 | 1,834,099 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,388,232 |
| Countries that Start with S | 0 | - | 4.98 | 1,765,438 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,689 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,603,240 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,382 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,855 |
| Countries that Start with M | 0 | - | 4.97 | 1,390,070 |
| Countries that Start with E | 0 | - | 4.95 | 1,387,255 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,644 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,600 |
| Countries that Start with I | 0 | - | 4.92 | 1,296,396 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,741 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,630 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,571 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,637 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,244 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,530 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 910,446 |
| Random Country to Capital | 0 | - | 4.98 | 930,755 |
| Countries that Start with T | 0 | - | 4.90 | 1,016,237 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,698 |
| Asia Map Quiz | 0 | - | 4.99 | 927,099 |
| Countries that Start with U | 0 | - | 4.97 | 909,523 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,132 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,870 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,332 |
| Counties of England | 0 | - | 4.97 | 804,642 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,590 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,656 |
| Top World Languages | 0 | - | 4.92 | 831,951 |
| Countries of South America | 0 | - | 5.00 | 934,800 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,400 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,299 |
| Countries that Start with K | 0 | - | 4.97 | 822,119 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,945 |
| US States with an Empty Map | 0 | - | 5.00 | 629,803 |
| Countries that Start with V | 0 | - | 4.98 | 612,749 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 511,190 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,489 |
| Flags of Asia Quiz | 0 | - | 4.99 | 622,327 |
| Countries that Start with D | 0 | - | 4.96 | 718,281 |
| Countries That Border Russia | 0 | - | 4.98 | 465,045 |
| One Border Countries | 0 | - | 4.98 | 472,804 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,949 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,828 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,588 |
| Countries with Four Letters | 0 | - | 4.99 | 426,652 |
| Countries with the Most Borders | 0 | - | 4.97 | 391,216 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,268 |
| Countries Bordering France | 0 | - | 4.83 | 405,461 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,159 |
| Northernmost Countries | 0 | - | 4.99 | 364,788 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,678 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,143 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,338 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,951 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,345 |
| Landlocked Countries | 0 | - | 4.99 | 427,622 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,528 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,576 |
| Australia Map Quiz | 0 | - | 4.95 | 346,583 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,635 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,336 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,622 |
| Countries that Start with H | 0 | - | 4.96 | 610,906 |
| Countries that Start with J | 0 | - | 4.98 | 608,240 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,602 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,459 |
| "Land" Countries | 0 | - | 4.98 | 339,148 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,261 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 292,515 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,318 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,770 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,352 |
| Flags of Africa Quiz | 0 | - | 5.00 | 479,516 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,312 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,661 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,779 |
| Countries with Z | 0 | - | 4.98 | 293,148 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,061 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,598 |
| Flags of North and South America | 0 | - | 4.99 | 378,409 |
| EU Countries Quiz | 0 | - | 4.99 | 279,136 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,758 |
| Countries that Border China | 0 | - | 4.96 | 264,606 |
| French-Speaking Countries | 0 | - | 4.85 | 271,977 |
| Countries with Five Letters | 0 | - | 4.96 | 284,810 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,364 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 292,083 |
| Every Country Shape | 0 | - | 5.00 | 472,812 |
| Europe Capital to Country | 0 | - | 4.99 | 252,704 |
| Longest International Borders | 0 | - | 4.99 | 266,067 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 278,267 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,922 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,955 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,956 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,395 |
| Megacities on a World Map | 0 | - | 4.98 | 257,615 |
| World Currency Quiz | 0 | - | 4.92 | 307,811 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,608 |
| NATO Countries | 0 | - | 4.98 | 284,215 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,780 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,458 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 227,135 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,697 |
| Official Cities in the UK | 0 | - | 4.89 | 287,025 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,906 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,737 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,446 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,831 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,099 |
| Countries with Megacities | 0 | - | 4.99 | 268,112 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,963 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,016 |
| World Capitals by Map | 0 | - | 5.00 | 290,135 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,495 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,251 |
| World's Busiest Airports | 0 | - | 4.96 | 238,175 |
| Country Chain | 0 | - | 4.96 | 218,727 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,337 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,467 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,245 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 197,247 |
| Independence from Whom | 0 | - | 4.99 | 213,513 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,738 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,079 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,209 |
| Countries with Six Letters | 0 | - | 4.94 | 215,086 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,412 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,828 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,522 |
| Flags of Oceania | 0 | - | 5.00 | 263,673 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,194 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,615 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,344 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,705 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,777 |
| Countries in their Native Language | 0 | - | 4.99 | 200,023 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,766 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 175,020 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,082 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,491 |
| Monarchies of the World | 0 | - | 4.94 | 170,633 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,777 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,276 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,867 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,319 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,054 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,336 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,235 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,797 |
| Countries That End in Y | 0 | - | 4.91 | 186,198 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,047 |
| Olympic Host Countries | 0 | - | 4.98 | 202,339 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,036 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,379 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,871 |
| Every European Country Shape | 0 | - | 4.96 | 203,331 |
| Countries of the Middle East | 0 | - | 4.96 | 203,353 |
| Countries by Official Language | 0 | - | 4.95 | 196,311 |
| Countries Closest to Australia | 0 | - | 4.99 | 168,021 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,372 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,235 |
| Counties of Ireland | 0 | - | 4.92 | 197,764 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,955 |
| Countries Bordering India | 0 | - | 4.98 | 163,914 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,498 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,241 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,531 |
| 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 | 96,470 |
| Islands by Country #2 | 0 | - | 4.80 | 78,043 |
