| Island Countries | 0 | - | 4.99 | 707,232 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,016 |
| European Countries by Clue | 0 | - | 4.92 | 182,285 |
| Countries by Military Spending | 0 | - | 4.93 | 176,242 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,124 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,851,203 |
| US States Quiz | 0 | - | 5.00 | 16,678,307 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,583,500 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,549 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,601 |
| Europe Map Quiz | 0 | - | 5.00 | 4,727,183 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,797,348 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,022 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,524,600 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,167 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,759 |
| Africa Map Quiz | 0 | - | 5.00 | 2,102,721 |
| All Country Flags of the World | 0 | - | 5.00 | 3,594,140 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,213 |
| Countries that Start with B | 0 | - | 4.95 | 2,277,978 |
| Countries that Start with A | 0 | - | 4.98 | 2,144,603 |
| Countries of Africa | 0 | - | 5.00 | 2,504,236 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,436,977 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,019 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,223 |
| Countries that Start with C | 0 | - | 4.96 | 1,808,739 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,374,588 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,175 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,468 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,568,916 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,161 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,428 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,219 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,260 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,567 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,476 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,178 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,603 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,330 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,615 |
| Countries that Start with N | 0 | - | 4.93 | 1,108,760 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,004 |
| Countries that Start with L | 0 | - | 4.98 | 1,081,908 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,436 |
| Random Country to Capital | 0 | - | 4.98 | 910,463 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,415 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,981 |
| Asia Map Quiz | 0 | - | 4.99 | 905,712 |
| Countries that Start with U | 0 | - | 4.97 | 899,061 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,595 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,395 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,109 |
| Counties of England | 0 | - | 4.97 | 788,289 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,290 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,422 |
| Top World Languages | 0 | - | 4.92 | 811,948 |
| Countries of South America | 0 | - | 5.00 | 913,377 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,355 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,826 |
| Countries that Start with K | 0 | - | 4.96 | 808,599 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,871 |
| US States with an Empty Map | 0 | - | 5.00 | 618,088 |
| Countries that Start with V | 0 | - | 4.98 | 604,505 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,160 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,005 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,471 |
| Countries that Start with D | 0 | - | 4.96 | 700,487 |
| Countries That Border Russia | 0 | - | 4.98 | 458,522 |
| One Border Countries | 0 | - | 4.98 | 463,568 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,236 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,788 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,997 |
| Countries with Four Letters | 0 | - | 4.99 | 418,033 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,145 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,431 |
| Countries Bordering France | 0 | - | 4.85 | 396,110 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,045 |
| Northernmost Countries | 0 | - | 4.99 | 357,244 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,056 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,826 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,670 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,045 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,940 |
| Landlocked Countries | 0 | - | 4.99 | 412,873 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,825 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,034 |
| Australia Map Quiz | 0 | - | 4.94 | 342,216 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,464 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,213 |
| Majority Muslim Countries | 0 | - | 4.98 | 367,990 |
| Countries that Start with H | 0 | - | 4.96 | 597,043 |
| Countries that Start with J | 0 | - | 4.98 | 595,113 |
| World Capitals by Proximity | 0 | - | 4.91 | 327,940 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,432 |
| "Land" Countries | 0 | - | 4.98 | 333,410 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,246 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,573 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,246 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 293,843 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,129 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,199 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,561 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,069 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,695 |
| Countries with Z | 0 | - | 4.98 | 287,368 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,861 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,687 |
| Flags of North and South America | 0 | - | 4.99 | 365,472 |
| EU Countries Quiz | 0 | - | 4.99 | 269,419 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,946 |
| Countries that Border China | 0 | - | 4.96 | 261,670 |
| French-Speaking Countries | 0 | - | 4.85 | 268,609 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,481 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,071 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,476 |
| Every Country Shape | 0 | - | 5.00 | 457,973 |
| Europe Capital to Country | 0 | - | 4.99 | 247,276 |
| Longest International Borders | 0 | - | 4.99 | 263,362 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,653 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,677 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,012 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,444 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,659 |
| Megacities on a World Map | 0 | - | 4.98 | 250,222 |
| World Currency Quiz | 0 | - | 4.92 | 297,775 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,152 |
| NATO Countries | 0 | - | 4.98 | 275,100 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,801 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,823 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 223,810 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,268 |
| Official Cities in the UK | 0 | - | 4.89 | 280,126 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,865 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,097 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,123 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,229 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,293 |
| Countries with Megacities | 0 | - | 4.99 | 246,177 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,598 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,704 |
| World Capitals by Map | 0 | - | 5.00 | 282,811 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,820 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,244 |
| World's Busiest Airports | 0 | - | 4.94 | 210,037 |
| Country Chain | 0 | - | 4.96 | 215,556 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,210 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,357 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,475 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,765 |
| Independence from Whom | 0 | - | 4.99 | 209,458 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,196 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,502 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,389 |
| Countries with Six Letters | 0 | - | 4.93 | 210,182 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,459 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,405 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,136 |
| Flags of Oceania | 0 | - | 5.00 | 254,603 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,265 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,133 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,884 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,229 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 210,656 |
| Countries in their Native Language | 0 | - | 4.99 | 196,468 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,161 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,034 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,300 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,173 |
| Monarchies of the World | 0 | - | 4.94 | 166,374 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,428 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,560 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,235 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,712 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 224,964 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,027 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,779 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,493 |
| Countries That End in Y | 0 | - | 4.90 | 185,150 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,082 |
| Olympic Host Countries | 0 | - | 4.98 | 198,747 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,505 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,836 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,987 |
| Every European Country Shape | 0 | - | 4.95 | 199,836 |
| Countries of the Middle East | 0 | - | 4.96 | 198,694 |
| Countries by Official Language | 0 | - | 4.95 | 192,584 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,111 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 198,937 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,637 |
| Counties of Ireland | 0 | - | 4.92 | 192,792 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,313 |
| Countries Bordering India | 0 | - | 4.98 | 162,537 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,581 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,444 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,541 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,548 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,373 |
| European Cities by Clue | 0 | - | 4.70 | 88,763 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,919 |
| Islands by Country #2 | 0 | - | 4.80 | 76,938 |
