| Island Countries | 0 | - | 4.99 | 713,165 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,948 |
| European Countries by Clue | 0 | - | 4.92 | 184,344 |
| Countries by Military Spending | 0 | - | 4.93 | 179,231 |
| Countries by Three Words #2 | 0 | - | 4.97 | 205,306 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,001,627 |
| US States Quiz | 0 | - | 5.00 | 17,030,423 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,662,110 |
| United States Map Quiz | 0 | - | 4.98 | 4,174,219 |
| World Capitals Quiz | 0 | - | 5.00 | 5,116,612 |
| Europe Map Quiz | 0 | - | 5.00 | 4,794,918 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,855,226 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,292 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,548,394 |
| Random Capital to Country | 0 | - | 4.99 | 2,605,080 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,815,193 |
| Africa Map Quiz | 0 | - | 5.00 | 2,131,329 |
| All Country Flags of the World | 0 | - | 5.00 | 3,728,391 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,129,230 |
| Countries that Start with B | 0 | - | 4.95 | 2,309,935 |
| Countries that Start with A | 0 | - | 4.98 | 2,179,287 |
| Countries of Africa | 0 | - | 5.00 | 2,566,146 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,671 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,701,082 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,930 |
| Countries that Start with C | 0 | - | 4.96 | 1,834,133 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,388,242 |
| Countries that Start with S | 0 | - | 4.98 | 1,765,463 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,714 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,603,293 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,431 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,887 |
| Countries that Start with M | 0 | - | 4.97 | 1,390,096 |
| Countries that Start with E | 0 | - | 4.95 | 1,387,291 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,672 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,606 |
| Countries that Start with I | 0 | - | 4.92 | 1,296,423 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,759 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,650 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,587 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,660 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,317 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,552 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 910,453 |
| Random Country to Capital | 0 | - | 4.98 | 930,798 |
| Countries that Start with T | 0 | - | 4.90 | 1,016,249 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,744 |
| Asia Map Quiz | 0 | - | 4.99 | 927,121 |
| Countries that Start with U | 0 | - | 4.97 | 909,537 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,170 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,898 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,343 |
| Counties of England | 0 | - | 4.97 | 804,660 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,606 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,695 |
| Top World Languages | 0 | - | 4.92 | 832,002 |
| Countries of South America | 0 | - | 5.00 | 934,830 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,416 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,332 |
| Countries that Start with K | 0 | - | 4.97 | 822,136 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,952 |
| US States with an Empty Map | 0 | - | 5.00 | 629,820 |
| Countries that Start with V | 0 | - | 4.98 | 612,758 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 511,210 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,492 |
| Flags of Asia Quiz | 0 | - | 4.99 | 622,342 |
| Countries that Start with D | 0 | - | 4.96 | 718,306 |
| Countries That Border Russia | 0 | - | 4.98 | 465,050 |
| One Border Countries | 0 | - | 4.98 | 472,817 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,953 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,848 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,597 |
| Countries with Four Letters | 0 | - | 4.99 | 426,658 |
| Countries with the Most Borders | 0 | - | 4.97 | 391,227 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,272 |
| Countries Bordering France | 0 | - | 4.83 | 405,473 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,166 |
| Northernmost Countries | 0 | - | 4.99 | 364,799 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,679 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,149 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,345 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,960 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,347 |
| Landlocked Countries | 0 | - | 4.99 | 427,645 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,539 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,581 |
| Australia Map Quiz | 0 | - | 4.95 | 346,585 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,641 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,346 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,631 |
| Countries that Start with H | 0 | - | 4.96 | 610,923 |
| Countries that Start with J | 0 | - | 4.98 | 608,255 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,610 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,464 |
| "Land" Countries | 0 | - | 4.98 | 339,154 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,265 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 292,521 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,328 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,774 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,356 |
| Flags of Africa Quiz | 0 | - | 5.00 | 479,546 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,316 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,664 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,787 |
| Countries with Z | 0 | - | 4.98 | 293,151 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,067 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,603 |
| Flags of North and South America | 0 | - | 4.99 | 378,430 |
| EU Countries Quiz | 0 | - | 4.99 | 279,148 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,768 |
| Countries that Border China | 0 | - | 4.96 | 264,609 |
| French-Speaking Countries | 0 | - | 4.85 | 271,979 |
| Countries with Five Letters | 0 | - | 4.96 | 284,814 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,367 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 292,097 |
| Every Country Shape | 0 | - | 5.00 | 472,829 |
| Europe Capital to Country | 0 | - | 4.99 | 252,707 |
| Longest International Borders | 0 | - | 4.99 | 266,072 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 278,277 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,925 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,969 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,959 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,398 |
| Megacities on a World Map | 0 | - | 4.98 | 257,626 |
| World Currency Quiz | 0 | - | 4.92 | 307,819 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,609 |
| NATO Countries | 0 | - | 4.98 | 284,230 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,782 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,464 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 227,142 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,698 |
| Official Cities in the UK | 0 | - | 4.89 | 287,044 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,913 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,737 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,447 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,835 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,106 |
| Countries with Megacities | 0 | - | 4.99 | 268,127 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,967 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,025 |
| World Capitals by Map | 0 | - | 5.00 | 290,147 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,498 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,255 |
| World's Busiest Airports | 0 | - | 4.96 | 238,185 |
| Country Chain | 0 | - | 4.96 | 218,728 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,372 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,473 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,250 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 197,248 |
| Independence from Whom | 0 | - | 4.99 | 213,519 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,745 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,082 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,215 |
| Countries with Six Letters | 0 | - | 4.94 | 215,091 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,414 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,829 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,525 |
| Flags of Oceania | 0 | - | 5.00 | 263,677 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,199 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,620 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,347 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,708 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,790 |
| Countries in their Native Language | 0 | - | 4.99 | 200,027 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,770 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 175,026 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,083 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,495 |
| Monarchies of the World | 0 | - | 4.94 | 170,641 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,780 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,280 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,868 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,341 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,057 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,336 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,238 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,806 |
| Countries That End in Y | 0 | - | 4.91 | 186,199 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,050 |
| Olympic Host Countries | 0 | - | 4.98 | 202,343 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,040 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,386 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,874 |
| Every European Country Shape | 0 | - | 4.96 | 203,335 |
| Countries of the Middle East | 0 | - | 4.96 | 203,356 |
| Countries by Official Language | 0 | - | 4.95 | 196,316 |
| Countries Closest to Australia | 0 | - | 4.99 | 168,022 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,376 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,236 |
| Counties of Ireland | 0 | - | 4.92 | 197,765 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,959 |
| Countries Bordering India | 0 | - | 4.98 | 163,916 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,500 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,243 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,536 |
| Countries with the Most Forest | 0 | - | 4.88 | 148,328 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,839 |
| European Cities by Clue | 0 | - | 4.70 | 89,227 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,470 |
| Islands by Country #2 | 0 | - | 4.80 | 78,047 |
