| Island Countries | 0 | - | 4.99 | 707,708 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,284 |
| European Countries by Clue | 0 | - | 4.92 | 182,395 |
| Countries by Military Spending | 0 | - | 4.93 | 176,441 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,636 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,938,243 |
| US States Quiz | 0 | - | 5.00 | 16,707,781 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,589,075 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,410 |
| World Capitals Quiz | 0 | - | 5.00 | 5,033,014 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,576 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,802,028 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,890 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,769 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,469 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,718,912 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,852 |
| All Country Flags of the World | 0 | - | 5.00 | 3,604,392 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,397 |
| Countries that Start with B | 0 | - | 4.95 | 2,280,317 |
| Countries that Start with A | 0 | - | 4.97 | 2,147,361 |
| Countries of Africa | 0 | - | 5.00 | 2,508,967 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,140 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,678,058 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,474 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,696 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,340 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,838 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,476 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,625 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,849,239 |
| Countries that Start with G | 0 | - | 4.97 | 1,493,157 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,612 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,822 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,155 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,895 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,522 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,784 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,751 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,604 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,006 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,417 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,137 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,349 |
| Random Country to Capital | 0 | - | 4.98 | 911,891 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,393 |
| Biggest Cities in the United States | 0 | - | 4.93 | 967,082 |
| Asia Map Quiz | 0 | - | 4.99 | 907,388 |
| Countries that Start with U | 0 | - | 4.97 | 900,058 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,995 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,012,207 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,801 |
| Counties of England | 0 | - | 4.97 | 789,511 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,179 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,571 |
| Top World Languages | 0 | - | 4.92 | 813,411 |
| Countries of South America | 0 | - | 5.00 | 915,182 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,491 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,170 |
| Countries that Start with K | 0 | - | 4.97 | 809,578 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,253 |
| US States with an Empty Map | 0 | - | 5.00 | 619,073 |
| Countries that Start with V | 0 | - | 4.98 | 605,221 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,094 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,247 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,880 |
| Countries that Start with D | 0 | - | 4.96 | 701,809 |
| Countries That Border Russia | 0 | - | 4.98 | 459,010 |
| One Border Countries | 0 | - | 4.98 | 464,553 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,932 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,444 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,960 |
| Countries with Four Letters | 0 | - | 4.99 | 418,653 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,902 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,873 |
| Countries Bordering France | 0 | - | 4.83 | 399,491 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,755 |
| Northernmost Countries | 0 | - | 4.99 | 357,849 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,402 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,180 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,149 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,337 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,152 |
| Landlocked Countries | 0 | - | 4.99 | 413,821 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,344 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,452 |
| Australia Map Quiz | 0 | - | 4.94 | 342,566 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,899 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,761 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,655 |
| Countries that Start with H | 0 | - | 4.96 | 598,174 |
| Countries that Start with J | 0 | - | 4.98 | 596,231 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,529 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,960 |
| "Land" Countries | 0 | - | 4.98 | 333,708 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,425 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,727 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,070 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,554 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,612 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,687 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,916 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,368 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,216 |
| Countries with Z | 0 | - | 4.98 | 287,920 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,179 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,004 |
| Flags of North and South America | 0 | - | 4.99 | 367,586 |
| EU Countries Quiz | 0 | - | 4.99 | 270,079 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,365 |
| Countries that Border China | 0 | - | 4.96 | 261,876 |
| French-Speaking Countries | 0 | - | 4.85 | 268,850 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,727 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,269 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,070 |
| Every Country Shape | 0 | - | 5.00 | 459,141 |
| Europe Capital to Country | 0 | - | 4.99 | 248,004 |
| Longest International Borders | 0 | - | 4.99 | 263,562 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,487 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,887 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,325 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,726 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,877 |
| Megacities on a World Map | 0 | - | 4.98 | 251,066 |
| World Currency Quiz | 0 | - | 4.92 | 298,642 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,399 |
| NATO Countries | 0 | - | 4.98 | 275,928 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,929 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,219 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,342 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,515 |
| Official Cities in the UK | 0 | - | 4.89 | 280,692 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,193 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,245 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,368 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,458 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,526 |
| Countries with Megacities | 0 | - | 4.99 | 247,203 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,826 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 231,028 |
| World Capitals by Map | 0 | - | 5.00 | 283,307 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,971 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,430 |
| World's Busiest Airports | 0 | - | 4.94 | 210,555 |
| Country Chain | 0 | - | 4.96 | 215,786 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,437 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,908 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,669 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,987 |
| Independence from Whom | 0 | - | 4.99 | 209,755 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,133 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,700 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,638 |
| Countries with Six Letters | 0 | - | 4.93 | 210,402 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,632 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,497 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,477 |
| Flags of Oceania | 0 | - | 5.00 | 255,373 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,539 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,073 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,992 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,389 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,340 |
| Countries in their Native Language | 0 | - | 4.99 | 196,680 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,372 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,395 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,415 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,411 |
| Monarchies of the World | 0 | - | 4.94 | 166,688 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,580 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 190,805 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,451 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,077 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,230 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,096 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,958 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,978 |
| Countries That End in Y | 0 | - | 4.90 | 185,217 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,306 |
| Olympic Host Countries | 0 | - | 4.98 | 198,936 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,831 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,945 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,165 |
| Every European Country Shape | 0 | - | 4.96 | 200,251 |
| Countries of the Middle East | 0 | - | 4.96 | 199,014 |
| Countries by Official Language | 0 | - | 4.95 | 192,814 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,222 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,141 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,760 |
| Counties of Ireland | 0 | - | 4.92 | 193,152 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,484 |
| Countries Bordering India | 0 | - | 4.98 | 162,625 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,673 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,511 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,695 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,652 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,435 |
| European Cities by Clue | 0 | - | 4.70 | 88,826 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,966 |
| Islands by Country #2 | 0 | - | 4.80 | 77,008 |
