| Island Countries | 0 | - | 4.99 | 707,664 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,242 |
| European Countries by Clue | 0 | - | 4.92 | 182,380 |
| Countries by Military Spending | 0 | - | 4.93 | 176,418 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,557 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,927,248 |
| US States Quiz | 0 | - | 5.00 | 16,704,061 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,588,545 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,098 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,221 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,935 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,801,554 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,549 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,532 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,187 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,660 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,567 |
| All Country Flags of the World | 0 | - | 5.00 | 3,603,194 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,183 |
| Countries that Start with B | 0 | - | 4.95 | 2,280,060 |
| Countries that Start with A | 0 | - | 4.97 | 2,147,064 |
| Countries of Africa | 0 | - | 5.00 | 2,508,372 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,613 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,819 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,348 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,487 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,001 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,657 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,246 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,336 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,668 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,946 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,489 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,647 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,987 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,855 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,383 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,656 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,567 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,491 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,849 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,054 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,982 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,279 |
| Random Country to Capital | 0 | - | 4.98 | 911,732 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,304 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,829 |
| Asia Map Quiz | 0 | - | 4.99 | 907,180 |
| Countries that Start with U | 0 | - | 4.97 | 899,981 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,641 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,891 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,734 |
| Counties of England | 0 | - | 4.97 | 789,365 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,051 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,420 |
| Top World Languages | 0 | - | 4.92 | 813,276 |
| Countries of South America | 0 | - | 5.00 | 914,900 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,407 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,027 |
| Countries that Start with K | 0 | - | 4.97 | 809,485 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,216 |
| US States with an Empty Map | 0 | - | 5.00 | 618,930 |
| Countries that Start with V | 0 | - | 4.98 | 605,151 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,956 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,211 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,710 |
| Countries that Start with D | 0 | - | 4.96 | 701,666 |
| Countries That Border Russia | 0 | - | 4.98 | 458,968 |
| One Border Countries | 0 | - | 4.98 | 464,442 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,889 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,361 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,888 |
| Countries with Four Letters | 0 | - | 4.99 | 418,584 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,835 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,815 |
| Countries Bordering France | 0 | - | 4.83 | 399,291 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,689 |
| Northernmost Countries | 0 | - | 4.99 | 357,772 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,346 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,145 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,097 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,300 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,126 |
| Landlocked Countries | 0 | - | 4.99 | 413,706 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,250 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,398 |
| Australia Map Quiz | 0 | - | 4.94 | 342,522 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,821 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,678 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,585 |
| Countries that Start with H | 0 | - | 4.96 | 598,059 |
| Countries that Start with J | 0 | - | 4.98 | 596,108 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,464 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,908 |
| "Land" Countries | 0 | - | 4.98 | 333,677 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,408 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,706 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,990 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,503 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,561 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,533 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,879 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,337 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,164 |
| Countries with Z | 0 | - | 4.98 | 287,895 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,155 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,954 |
| Flags of North and South America | 0 | - | 4.99 | 367,388 |
| EU Countries Quiz | 0 | - | 4.99 | 270,004 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,324 |
| Countries that Border China | 0 | - | 4.96 | 261,837 |
| French-Speaking Countries | 0 | - | 4.85 | 268,823 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,700 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,256 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,996 |
| Every Country Shape | 0 | - | 5.00 | 459,046 |
| Europe Capital to Country | 0 | - | 4.99 | 247,956 |
| Longest International Borders | 0 | - | 4.99 | 263,548 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,391 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,866 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,107 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,684 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,849 |
| Megacities on a World Map | 0 | - | 4.98 | 251,013 |
| World Currency Quiz | 0 | - | 4.92 | 298,560 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,368 |
| NATO Countries | 0 | - | 4.98 | 275,830 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,916 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,179 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,299 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,491 |
| Official Cities in the UK | 0 | - | 4.89 | 280,611 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,169 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,230 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,336 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,432 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,497 |
| Countries with Megacities | 0 | - | 4.99 | 247,020 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,788 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,997 |
| World Capitals by Map | 0 | - | 5.00 | 283,258 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,955 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,394 |
| World's Busiest Airports | 0 | - | 4.94 | 210,497 |
| Country Chain | 0 | - | 4.96 | 215,751 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,420 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,863 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,644 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,957 |
| Independence from Whom | 0 | - | 4.99 | 209,717 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,032 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,660 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,615 |
| Countries with Six Letters | 0 | - | 4.93 | 210,380 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,613 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,485 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,439 |
| Flags of Oceania | 0 | - | 5.00 | 255,269 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,503 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,030 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,985 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,372 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,242 |
| Countries in their Native Language | 0 | - | 4.99 | 196,654 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,354 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,365 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,403 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,391 |
| Monarchies of the World | 0 | - | 4.94 | 166,649 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,564 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 190,775 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,418 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,053 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,209 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,089 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,940 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,932 |
| Countries That End in Y | 0 | - | 4.90 | 185,211 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,278 |
| Olympic Host Countries | 0 | - | 4.98 | 198,911 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,795 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,933 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,140 |
| Every European Country Shape | 0 | - | 4.96 | 200,223 |
| Countries of the Middle East | 0 | - | 4.96 | 198,956 |
| Countries by Official Language | 0 | - | 4.95 | 192,791 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,212 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,114 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,749 |
| Counties of Ireland | 0 | - | 4.92 | 193,127 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,462 |
| Countries Bordering India | 0 | - | 4.98 | 162,611 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,666 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,508 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,675 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,640 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,431 |
| European Cities by Clue | 0 | - | 4.70 | 88,816 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,954 |
| Islands by Country #2 | 0 | - | 4.80 | 76,997 |
