| Island Countries | 0 | - | 4.99 | 709,966 |
| Countries by Three Words #1 | 0 | - | 4.95 | 265,222 |
| European Countries by Clue | 0 | - | 4.92 | 183,540 |
| Countries by Military Spending | 0 | - | 4.93 | 177,516 |
| Countries by Three Words #2 | 0 | - | 4.97 | 202,052 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,368,528 |
| US States Quiz | 0 | - | 5.00 | 16,846,669 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,617,377 |
| United States Map Quiz | 0 | - | 4.98 | 4,155,177 |
| World Capitals Quiz | 0 | - | 5.00 | 5,066,517 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,054 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,824,378 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,376,787 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,535,511 |
| Random Capital to Country | 0 | - | 4.99 | 2,589,040 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,759,761 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,768 |
| All Country Flags of the World | 0 | - | 5.00 | 3,653,712 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,099,377 |
| Countries that Start with B | 0 | - | 4.95 | 2,291,894 |
| Countries that Start with A | 0 | - | 4.98 | 2,160,039 |
| Countries of Africa | 0 | - | 5.00 | 2,532,368 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,381 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,687,537 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,298 |
| Countries that Start with C | 0 | - | 4.96 | 1,820,019 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,381,848 |
| Countries that Start with S | 0 | - | 4.98 | 1,753,050 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,001 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,583,934 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,868,053 |
| Countries that Start with G | 0 | - | 4.97 | 1,501,218 |
| Countries that Start with M | 0 | - | 4.97 | 1,380,213 |
| Countries that Start with E | 0 | - | 4.95 | 1,375,509 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,966 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,745 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,682 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,872 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,565 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,092,061 |
| Countries that Start with N | 0 | - | 4.93 | 1,116,414 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,241,469 |
| Countries that Start with L | 0 | - | 4.98 | 1,089,424 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 906,635 |
| Random Country to Capital | 0 | - | 4.98 | 919,092 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,846 |
| Biggest Cities in the United States | 0 | - | 4.94 | 976,561 |
| Asia Map Quiz | 0 | - | 4.99 | 915,345 |
| Countries that Start with U | 0 | - | 4.97 | 903,686 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,963 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,021,419 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 732,876 |
| Counties of England | 0 | - | 4.97 | 795,431 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,538 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,188 |
| Top World Languages | 0 | - | 4.92 | 820,775 |
| Countries of South America | 0 | - | 5.00 | 923,590 |
| Africa Capitals Quiz | 0 | - | 4.99 | 736,469 |
| Asia Capitals Quiz | 0 | - | 4.98 | 691,649 |
| Countries that Start with K | 0 | - | 4.97 | 814,714 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,170 |
| US States with an Empty Map | 0 | - | 5.00 | 623,721 |
| Countries that Start with V | 0 | - | 4.98 | 608,704 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 505,862 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,521 |
| Flags of Asia Quiz | 0 | - | 4.99 | 612,294 |
| Countries that Start with D | 0 | - | 4.96 | 708,171 |
| Countries That Border Russia | 0 | - | 4.98 | 461,337 |
| One Border Countries | 0 | - | 4.98 | 467,947 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 416,447 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,720 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,366 |
| Countries with Four Letters | 0 | - | 4.99 | 421,834 |
| Countries with the Most Borders | 0 | - | 4.97 | 388,087 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 449,660 |
| Countries Bordering France | 0 | - | 4.83 | 402,116 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,901 |
| Northernmost Countries | 0 | - | 4.99 | 360,699 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,167 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,724 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,780 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,746 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,130 |
| Landlocked Countries | 0 | - | 4.99 | 419,417 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,764 |
| World Map without 12 Countries | 0 | - | 4.97 | 344,130 |
| Australia Map Quiz | 0 | - | 4.95 | 344,082 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,738 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,761 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,559 |
| Countries that Start with H | 0 | - | 4.96 | 603,565 |
| Countries that Start with J | 0 | - | 4.98 | 601,368 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,853 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,103 |
| "Land" Countries | 0 | - | 4.98 | 335,911 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,377 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 290,189 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,775 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,701 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 312,397 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,967 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,135 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,257 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,764 |
| Countries with Z | 0 | - | 4.98 | 289,913 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,656 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,527 |
| Flags of North and South America | 0 | - | 4.99 | 372,354 |
| EU Countries Quiz | 0 | - | 4.99 | 273,237 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,133 |
| Countries that Border China | 0 | - | 4.96 | 262,952 |
| French-Speaking Countries | 0 | - | 4.85 | 270,300 |
| Countries with Five Letters | 0 | - | 4.96 | 280,717 |
| United States Cities Map Quiz | 0 | - | 4.96 | 214,035 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,710 |
| Every Country Shape | 0 | - | 5.00 | 464,274 |
| Europe Capital to Country | 0 | - | 4.99 | 249,749 |
| Longest International Borders | 0 | - | 4.99 | 264,733 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 272,265 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,144 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,402 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,205 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,752 |
| Megacities on a World Map | 0 | - | 4.98 | 253,697 |
| World Currency Quiz | 0 | - | 4.91 | 302,256 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,609 |
| NATO Countries | 0 | - | 4.98 | 279,579 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,744 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,928 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 225,337 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,680 |
| Official Cities in the UK | 0 | - | 4.89 | 283,275 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,763 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,856 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,770 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,798 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,823 |
| Countries with Megacities | 0 | - | 4.99 | 261,729 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,136 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,594 |
| World Capitals by Map | 0 | - | 5.00 | 285,806 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,571 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,682 |
| World's Busiest Airports | 0 | - | 4.96 | 232,863 |
| Country Chain | 0 | - | 4.96 | 216,913 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,042 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,455 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,776 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,248 |
| Independence from Whom | 0 | - | 4.99 | 211,435 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,871 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,477 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,347 |
| Countries with Six Letters | 0 | - | 4.94 | 212,589 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,628 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,101 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,218 |
| Flags of Oceania | 0 | - | 5.00 | 258,504 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,041 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,216 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,542 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,114 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,238 |
| Countries in their Native Language | 0 | - | 4.99 | 198,273 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,844 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,965 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,983 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,314 |
| Monarchies of the World | 0 | - | 4.94 | 168,389 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,811 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,900 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,422 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,981 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,828 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,621 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,715 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,355 |
| Countries That End in Y | 0 | - | 4.91 | 185,663 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,162 |
| Olympic Host Countries | 0 | - | 4.98 | 200,513 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,462 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,415 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,839 |
| Every European Country Shape | 0 | - | 4.96 | 201,431 |
| Countries of the Middle East | 0 | - | 4.96 | 200,896 |
| Countries by Official Language | 0 | - | 4.95 | 194,733 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,837 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,244 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,285 |
| Counties of Ireland | 0 | - | 4.92 | 194,909 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,711 |
| Countries Bordering India | 0 | - | 4.98 | 163,364 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,401 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,806 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,759 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,474 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,778 |
| European Cities by Clue | 0 | - | 4.70 | 89,022 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,144 |
| Islands by Country #2 | 0 | - | 4.80 | 77,362 |
