| Island Countries | 0 | - | 4.99 | 707,207 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,003 |
| European Countries by Clue | 0 | - | 4.92 | 182,280 |
| Countries by Military Spending | 0 | - | 4.93 | 176,225 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,093 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,846,945 |
| US States Quiz | 0 | - | 5.00 | 16,676,710 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,583,203 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,445 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,133 |
| Europe Map Quiz | 0 | - | 5.00 | 4,726,907 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,797,146 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,359,890 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,524,499 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,037 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,266 |
| Africa Map Quiz | 0 | - | 5.00 | 2,102,557 |
| All Country Flags of the World | 0 | - | 5.00 | 3,593,557 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,102 |
| Countries that Start with B | 0 | - | 4.95 | 2,277,840 |
| Countries that Start with A | 0 | - | 4.98 | 2,144,445 |
| Countries of Africa | 0 | - | 5.00 | 2,504,000 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,436,926 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,675,960 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,188 |
| Countries that Start with C | 0 | - | 4.96 | 1,808,626 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,374,444 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,085 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,386 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,568,755 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,844,861 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,352 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,146 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,175 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,489 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,464 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,103 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,540 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,259 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,571 |
| Countries that Start with N | 0 | - | 4.93 | 1,108,694 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,223,832 |
| Countries that Start with L | 0 | - | 4.98 | 1,081,846 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,370 |
| Random Country to Capital | 0 | - | 4.98 | 910,391 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,368 |
| Biggest Cities in the United States | 0 | - | 4.93 | 964,906 |
| Asia Map Quiz | 0 | - | 4.99 | 905,610 |
| Countries that Start with U | 0 | - | 4.97 | 898,983 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,466 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,270 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,075 |
| Counties of England | 0 | - | 4.97 | 788,214 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,260 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,362 |
| Top World Languages | 0 | - | 4.92 | 811,883 |
| Countries of South America | 0 | - | 5.00 | 913,283 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,298 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,736 |
| Countries that Start with K | 0 | - | 4.96 | 808,546 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,852 |
| US States with an Empty Map | 0 | - | 5.00 | 618,048 |
| Countries that Start with V | 0 | - | 4.98 | 604,479 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,124 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 410,989 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,389 |
| Countries that Start with D | 0 | - | 4.96 | 700,419 |
| Countries That Border Russia | 0 | - | 4.98 | 458,497 |
| One Border Countries | 0 | - | 4.98 | 463,529 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,178 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,738 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,959 |
| Countries with Four Letters | 0 | - | 4.99 | 418,000 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,119 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,413 |
| Countries Bordering France | 0 | - | 4.85 | 395,558 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,985 |
| Northernmost Countries | 0 | - | 4.99 | 357,207 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,042 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,808 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,627 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,035 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,918 |
| Landlocked Countries | 0 | - | 4.99 | 412,833 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,795 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,018 |
| Australia Map Quiz | 0 | - | 4.94 | 342,204 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,445 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,188 |
| Majority Muslim Countries | 0 | - | 4.98 | 367,961 |
| Countries that Start with H | 0 | - | 4.96 | 596,984 |
| Countries that Start with J | 0 | - | 4.98 | 595,053 |
| World Capitals by Proximity | 0 | - | 4.91 | 327,916 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,390 |
| "Land" Countries | 0 | - | 4.98 | 333,401 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,233 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,566 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,212 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 293,794 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,110 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,119 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,536 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,057 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,660 |
| Countries with Z | 0 | - | 4.98 | 287,289 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,847 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,661 |
| Flags of North and South America | 0 | - | 4.99 | 365,323 |
| EU Countries Quiz | 0 | - | 4.99 | 269,384 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,928 |
| Countries that Border China | 0 | - | 4.96 | 261,660 |
| French-Speaking Countries | 0 | - | 4.85 | 268,597 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,461 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,065 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,426 |
| Every Country Shape | 0 | - | 5.00 | 457,916 |
| Europe Capital to Country | 0 | - | 4.99 | 247,262 |
| Longest International Borders | 0 | - | 4.99 | 263,356 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,614 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,667 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,968 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,432 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,647 |
| Megacities on a World Map | 0 | - | 4.98 | 250,122 |
| World Currency Quiz | 0 | - | 4.92 | 297,726 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,140 |
| NATO Countries | 0 | - | 4.98 | 275,050 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,793 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,810 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 223,771 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,257 |
| Official Cities in the UK | 0 | - | 4.89 | 280,101 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,840 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,094 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,109 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,217 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,284 |
| Countries with Megacities | 0 | - | 4.99 | 246,137 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,582 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,689 |
| World Capitals by Map | 0 | - | 5.00 | 282,776 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,809 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,232 |
| World's Busiest Airports | 0 | - | 4.94 | 210,014 |
| Country Chain | 0 | - | 4.96 | 215,543 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,196 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,330 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,457 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,756 |
| Independence from Whom | 0 | - | 4.99 | 209,437 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,127 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,489 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,383 |
| Countries with Six Letters | 0 | - | 4.93 | 210,164 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,454 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,401 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,121 |
| Flags of Oceania | 0 | - | 5.00 | 254,553 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,242 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,119 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,878 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,220 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 210,629 |
| Countries in their Native Language | 0 | - | 4.99 | 196,454 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,150 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,014 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,296 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,164 |
| Monarchies of the World | 0 | - | 4.94 | 166,353 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,422 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,549 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,212 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,682 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 224,949 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,022 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,776 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,458 |
| Countries That End in Y | 0 | - | 4.90 | 185,147 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,069 |
| Olympic Host Countries | 0 | - | 4.98 | 198,736 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,484 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,833 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,984 |
| Every European Country Shape | 0 | - | 4.95 | 199,820 |
| Countries of the Middle East | 0 | - | 4.96 | 198,681 |
| Countries by Official Language | 0 | - | 4.95 | 192,577 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,108 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 198,925 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,629 |
| Counties of Ireland | 0 | - | 4.92 | 192,766 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,305 |
| Countries Bordering India | 0 | - | 4.98 | 162,529 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,574 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,439 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,528 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,543 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,369 |
| European Cities by Clue | 0 | - | 4.70 | 88,762 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,917 |
| Islands by Country #2 | 0 | - | 4.80 | 76,934 |
