| Island Countries | 0 | - | 4.99 | 711,796 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,261 |
| European Countries by Clue | 0 | - | 4.92 | 184,010 |
| Countries by Military Spending | 0 | - | 4.93 | 178,733 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,006 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,737,475 |
| US States Quiz | 0 | - | 5.00 | 16,958,535 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,643,381 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,369 |
| World Capitals Quiz | 0 | - | 5.00 | 5,095,217 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,757 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,842,247 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,665 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,543,051 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,131 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,792,516 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,643 |
| All Country Flags of the World | 0 | - | 5.00 | 3,697,728 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,109,422 |
| Countries that Start with B | 0 | - | 4.95 | 2,302,500 |
| Countries that Start with A | 0 | - | 4.98 | 2,171,408 |
| Countries of Africa | 0 | - | 5.00 | 2,552,165 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,977 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,695,977 |
| South America Map Quiz | 0 | - | 5.00 | 1,553,932 |
| Countries that Start with C | 0 | - | 4.96 | 1,828,399 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,118 |
| Countries that Start with S | 0 | - | 4.98 | 1,760,469 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,337 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,432 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,577 |
| Countries that Start with G | 0 | - | 4.97 | 1,508,782 |
| Countries that Start with M | 0 | - | 4.97 | 1,386,135 |
| Countries that Start with E | 0 | - | 4.95 | 1,382,481 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,342 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,128 |
| Countries that Start with I | 0 | - | 4.92 | 1,292,543 |
| Countries that Start with P | 0 | - | 4.94 | 1,220,126 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,519 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,095,775 |
| Countries that Start with N | 0 | - | 4.93 | 1,121,838 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,287 |
| Countries that Start with L | 0 | - | 4.98 | 1,094,791 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 908,894 |
| Random Country to Capital | 0 | - | 4.98 | 925,369 |
| Countries that Start with T | 0 | - | 4.90 | 1,013,363 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,334 |
| Asia Map Quiz | 0 | - | 4.99 | 922,775 |
| Countries that Start with U | 0 | - | 4.97 | 907,275 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,360 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,599 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,450 |
| Counties of England | 0 | - | 4.97 | 801,035 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,013 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,732 |
| Top World Languages | 0 | - | 4.92 | 827,299 |
| Countries of South America | 0 | - | 5.00 | 930,024 |
| Africa Capitals Quiz | 0 | - | 4.99 | 741,972 |
| Asia Capitals Quiz | 0 | - | 4.98 | 696,934 |
| Countries that Start with K | 0 | - | 4.97 | 819,152 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,853 |
| US States with an Empty Map | 0 | - | 5.00 | 627,366 |
| Countries that Start with V | 0 | - | 4.98 | 611,119 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,028 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,774 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,009 |
| Countries that Start with D | 0 | - | 4.96 | 714,212 |
| Countries That Border Russia | 0 | - | 4.98 | 463,840 |
| One Border Countries | 0 | - | 4.98 | 470,991 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,922 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,837 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,603 |
| Countries with Four Letters | 0 | - | 4.99 | 424,814 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,860 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,486 |
| Countries Bordering France | 0 | - | 4.83 | 404,298 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,746 |
| Northernmost Countries | 0 | - | 4.99 | 363,108 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,661 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,125 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,282 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,202 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,637 |
| Landlocked Countries | 0 | - | 4.99 | 423,878 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,096 |
| World Map without 12 Countries | 0 | - | 4.97 | 345,568 |
| Australia Map Quiz | 0 | - | 4.95 | 345,715 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,456 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,762 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,641 |
| Countries that Start with H | 0 | - | 4.96 | 607,990 |
| Countries that Start with J | 0 | - | 4.98 | 605,481 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,052 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,446 |
| "Land" Countries | 0 | - | 4.98 | 337,899 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,623 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 291,871 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,046 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,814 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,570 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,524 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,117 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 238,004 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 273,815 |
| Countries with Z | 0 | - | 4.98 | 291,983 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,132 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,619 |
| Flags of North and South America | 0 | - | 4.99 | 375,737 |
| EU Countries Quiz | 0 | - | 4.99 | 276,738 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,656 |
| Countries that Border China | 0 | - | 4.96 | 263,926 |
| French-Speaking Countries | 0 | - | 4.85 | 271,313 |
| Countries with Five Letters | 0 | - | 4.96 | 283,230 |
| United States Cities Map Quiz | 0 | - | 4.96 | 214,996 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 290,306 |
| Every Country Shape | 0 | - | 5.00 | 469,388 |
| Europe Capital to Country | 0 | - | 4.99 | 251,539 |
| Longest International Borders | 0 | - | 4.99 | 265,533 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 275,726 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,385 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,301 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,270 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,729 |
| Megacities on a World Map | 0 | - | 4.98 | 256,158 |
| World Currency Quiz | 0 | - | 4.92 | 305,565 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,700 |
| NATO Countries | 0 | - | 4.98 | 282,525 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,363 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,372 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,402 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,938 |
| Official Cities in the UK | 0 | - | 4.89 | 285,423 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,029 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,387 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,751 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,759 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,545 |
| Countries with Megacities | 0 | - | 4.99 | 265,900 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,226 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,945 |
| World Capitals by Map | 0 | - | 5.00 | 288,546 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,092 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,739 |
| World's Busiest Airports | 0 | - | 4.96 | 236,202 |
| Country Chain | 0 | - | 4.96 | 217,981 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 280,422 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,724 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,026 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,381 |
| Independence from Whom | 0 | - | 4.99 | 212,580 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,129 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,563 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,864 |
| Countries with Six Letters | 0 | - | 4.94 | 214,037 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,082 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,562 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,574 |
| Flags of Oceania | 0 | - | 5.00 | 261,735 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,294 |
| Largest Countries with No Borders | 0 | - | 4.97 | 222,021 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,048 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,859 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,757 |
| Countries in their Native Language | 0 | - | 4.99 | 199,428 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,012 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,218 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,713 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,198 |
| Monarchies of the World | 0 | - | 4.94 | 169,747 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,017 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,580 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,389 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,813 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,125 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,064 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,398 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,436 |
| Countries That End in Y | 0 | - | 4.91 | 186,001 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,209 |
| Olympic Host Countries | 0 | - | 4.98 | 201,561 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,981 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,023 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,433 |
| Every European Country Shape | 0 | - | 4.96 | 202,570 |
| Countries of the Middle East | 0 | - | 4.96 | 202,215 |
| Countries by Official Language | 0 | - | 4.95 | 195,656 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,324 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,926 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,927 |
| Counties of Ireland | 0 | - | 4.92 | 196,774 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,477 |
| Countries Bordering India | 0 | - | 4.98 | 163,707 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,901 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,063 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,379 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,829 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,347 |
| European Cities by Clue | 0 | - | 4.70 | 89,134 |
| Geography Analogies #1 | 0 | - | 4.69 | 96,145 |
| Islands by Country #2 | 0 | - | 4.80 | 77,707 |
