| Island Countries | 0 | - | 4.99 | 707,256 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,030 |
| European Countries by Clue | 0 | - | 4.92 | 182,291 |
| Countries by Military Spending | 0 | - | 4.93 | 176,256 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,149 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,855,202 |
| US States Quiz | 0 | - | 5.00 | 16,679,772 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,583,779 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,721 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,932 |
| Europe Map Quiz | 0 | - | 5.00 | 4,727,488 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,797,586 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,167 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,524,691 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,291 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,710,161 |
| Africa Map Quiz | 0 | - | 5.00 | 2,102,836 |
| All Country Flags of the World | 0 | - | 5.00 | 3,594,589 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,375 |
| Countries that Start with B | 0 | - | 4.95 | 2,278,083 |
| Countries that Start with A | 0 | - | 4.98 | 2,144,745 |
| Countries of Africa | 0 | - | 5.00 | 2,504,473 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,437,814 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,093 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,308 |
| Countries that Start with C | 0 | - | 4.96 | 1,808,838 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,374,797 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,258 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,553 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,030 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,318 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,498 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,309 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,338 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,607 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,494 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,241 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,685 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,402 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,653 |
| Countries that Start with N | 0 | - | 4.93 | 1,108,828 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,186 |
| Countries that Start with L | 0 | - | 4.98 | 1,081,975 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,492 |
| Random Country to Capital | 0 | - | 4.98 | 910,547 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,470 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,084 |
| Asia Map Quiz | 0 | - | 4.99 | 905,829 |
| Countries that Start with U | 0 | - | 4.97 | 899,182 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,713 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,479 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,138 |
| Counties of England | 0 | - | 4.97 | 788,371 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,327 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,479 |
| Top World Languages | 0 | - | 4.92 | 812,029 |
| Countries of South America | 0 | - | 5.00 | 913,453 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,415 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,869 |
| Countries that Start with K | 0 | - | 4.96 | 808,645 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,906 |
| US States with an Empty Map | 0 | - | 5.00 | 618,125 |
| Countries that Start with V | 0 | - | 4.98 | 604,547 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,218 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,015 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,541 |
| Countries that Start with D | 0 | - | 4.96 | 700,553 |
| Countries That Border Russia | 0 | - | 4.98 | 458,543 |
| One Border Countries | 0 | - | 4.98 | 463,616 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,294 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,827 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,018 |
| Countries with Four Letters | 0 | - | 4.99 | 418,065 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,166 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,461 |
| Countries Bordering France | 0 | - | 4.85 | 396,550 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,115 |
| Northernmost Countries | 0 | - | 4.99 | 357,271 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,070 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,846 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,701 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,058 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,954 |
| Landlocked Countries | 0 | - | 4.99 | 412,917 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,859 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,046 |
| Australia Map Quiz | 0 | - | 4.94 | 342,230 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,484 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,232 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,020 |
| Countries that Start with H | 0 | - | 4.96 | 597,109 |
| Countries that Start with J | 0 | - | 4.98 | 595,164 |
| World Capitals by Proximity | 0 | - | 4.91 | 327,965 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,476 |
| "Land" Countries | 0 | - | 4.98 | 333,432 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,254 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,580 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,310 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 293,892 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,148 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,265 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,567 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,082 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,738 |
| Countries with Z | 0 | - | 4.98 | 287,456 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,886 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,704 |
| Flags of North and South America | 0 | - | 4.99 | 365,583 |
| EU Countries Quiz | 0 | - | 4.99 | 269,451 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,977 |
| Countries that Border China | 0 | - | 4.96 | 261,683 |
| French-Speaking Countries | 0 | - | 4.85 | 268,617 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,498 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,073 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,511 |
| Every Country Shape | 0 | - | 5.00 | 458,023 |
| Europe Capital to Country | 0 | - | 4.99 | 247,286 |
| Longest International Borders | 0 | - | 4.99 | 263,375 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,692 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,694 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,071 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,453 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,670 |
| Megacities on a World Map | 0 | - | 4.98 | 250,326 |
| World Currency Quiz | 0 | - | 4.92 | 297,814 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,162 |
| NATO Countries | 0 | - | 4.98 | 275,139 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,808 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,839 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 223,857 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,274 |
| Official Cities in the UK | 0 | - | 4.89 | 280,152 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,885 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,104 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,135 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,240 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,307 |
| Countries with Megacities | 0 | - | 4.99 | 246,213 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,606 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,719 |
| World Capitals by Map | 0 | - | 5.00 | 282,834 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,825 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,248 |
| World's Busiest Airports | 0 | - | 4.94 | 210,064 |
| Country Chain | 0 | - | 4.96 | 215,573 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,221 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,408 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,482 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,781 |
| Independence from Whom | 0 | - | 4.99 | 209,481 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,262 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,522 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,396 |
| Countries with Six Letters | 0 | - | 4.93 | 210,200 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,469 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,411 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,154 |
| Flags of Oceania | 0 | - | 5.00 | 254,637 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,278 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,142 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,887 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,237 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 210,693 |
| Countries in their Native Language | 0 | - | 4.99 | 196,482 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,169 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,062 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,306 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,179 |
| Monarchies of the World | 0 | - | 4.94 | 166,393 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,431 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,576 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,248 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,756 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 224,987 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,031 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,790 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,514 |
| Countries That End in Y | 0 | - | 4.90 | 185,155 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,095 |
| Olympic Host Countries | 0 | - | 4.98 | 198,760 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,518 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,842 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,997 |
| Every European Country Shape | 0 | - | 4.95 | 199,844 |
| Countries of the Middle East | 0 | - | 4.96 | 198,709 |
| Countries by Official Language | 0 | - | 4.95 | 192,595 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,120 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 198,946 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,643 |
| Counties of Ireland | 0 | - | 4.92 | 192,807 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,315 |
| Countries Bordering India | 0 | - | 4.98 | 162,539 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,585 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,448 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,549 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,553 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,373 |
| European Cities by Clue | 0 | - | 4.70 | 88,767 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,922 |
| Islands by Country #2 | 0 | - | 4.80 | 76,940 |
