| Island Countries | 0 | - | 4.99 | 711,012 |
| Countries by Three Words #1 | 0 | - | 4.95 | 265,840 |
| European Countries by Clue | 0 | - | 4.92 | 183,801 |
| Countries by Military Spending | 0 | - | 4.93 | 178,330 |
| Countries by Three Words #2 | 0 | - | 4.97 | 203,122 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,574,964 |
| US States Quiz | 0 | - | 5.00 | 16,911,994 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,631,749 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,002 |
| World Capitals Quiz | 0 | - | 5.00 | 5,082,661 |
| Europe Map Quiz | 0 | - | 5.00 | 4,769,769 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,834,392 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,383,409 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,539,671 |
| Random Capital to Country | 0 | - | 4.99 | 2,594,239 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,777,975 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,254 |
| All Country Flags of the World | 0 | - | 5.00 | 3,678,002 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,104,928 |
| Countries that Start with B | 0 | - | 4.95 | 2,297,575 |
| Countries that Start with A | 0 | - | 4.98 | 2,166,136 |
| Countries of Africa | 0 | - | 5.00 | 2,543,760 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,531 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,692,435 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,485 |
| Countries that Start with C | 0 | - | 4.96 | 1,824,654 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,384,674 |
| Countries that Start with S | 0 | - | 4.98 | 1,757,185 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,020 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,590,261 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,876,934 |
| Countries that Start with G | 0 | - | 4.97 | 1,505,616 |
| Countries that Start with M | 0 | - | 4.97 | 1,383,539 |
| Countries that Start with E | 0 | - | 4.95 | 1,379,367 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,468 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,845 |
| Countries that Start with I | 0 | - | 4.92 | 1,290,004 |
| Countries that Start with P | 0 | - | 4.94 | 1,217,808 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,742 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,094,109 |
| Countries that Start with N | 0 | - | 4.93 | 1,119,410 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,247,943 |
| Countries that Start with L | 0 | - | 4.98 | 1,092,379 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 907,961 |
| Random Country to Capital | 0 | - | 4.98 | 922,546 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,118 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,774 |
| Asia Map Quiz | 0 | - | 4.99 | 919,165 |
| Countries that Start with U | 0 | - | 4.97 | 905,534 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,690 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,025,459 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,283 |
| Counties of England | 0 | - | 4.97 | 798,603 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,498 |
| Oceania Map Quiz | 0 | - | 4.98 | 643,641 |
| Top World Languages | 0 | - | 4.92 | 824,096 |
| Countries of South America | 0 | - | 5.00 | 927,230 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,507 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,489 |
| Countries that Start with K | 0 | - | 4.97 | 817,194 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,068 |
| US States with an Empty Map | 0 | - | 5.00 | 625,840 |
| Countries that Start with V | 0 | - | 4.98 | 610,061 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,716 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,349 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,584 |
| Countries that Start with D | 0 | - | 4.96 | 711,492 |
| Countries That Border Russia | 0 | - | 4.98 | 462,726 |
| One Border Countries | 0 | - | 4.98 | 469,817 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,319 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,373 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,136 |
| Countries with Four Letters | 0 | - | 4.99 | 423,244 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,041 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,484 |
| Countries Bordering France | 0 | - | 4.83 | 403,445 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,933 |
| Northernmost Countries | 0 | - | 4.99 | 361,917 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,964 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,475 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,558 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,723 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,105 |
| Landlocked Countries | 0 | - | 4.99 | 421,863 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,919 |
| World Map without 12 Countries | 0 | - | 4.97 | 344,924 |
| Australia Map Quiz | 0 | - | 4.95 | 345,002 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,697 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,640 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,434 |
| Countries that Start with H | 0 | - | 4.96 | 606,055 |
| Countries that Start with J | 0 | - | 4.98 | 603,669 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,041 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,888 |
| "Land" Countries | 0 | - | 4.98 | 337,310 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,266 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 291,358 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,523 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,386 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,042 |
| Flags of Africa Quiz | 0 | - | 5.00 | 472,885 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,141 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,651 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,449 |
| Countries with Z | 0 | - | 4.98 | 291,410 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,337 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,164 |
| Flags of North and South America | 0 | - | 4.99 | 374,133 |
| EU Countries Quiz | 0 | - | 4.99 | 275,404 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,947 |
| Countries that Border China | 0 | - | 4.96 | 263,513 |
| French-Speaking Countries | 0 | - | 4.85 | 270,822 |
| Countries with Five Letters | 0 | - | 4.96 | 282,396 |
| United States Cities Map Quiz | 0 | - | 4.96 | 214,430 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,233 |
| Every Country Shape | 0 | - | 5.00 | 467,262 |
| Europe Capital to Country | 0 | - | 4.99 | 250,804 |
| Longest International Borders | 0 | - | 4.99 | 265,189 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,346 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,927 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,495 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,780 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,241 |
| Megacities on a World Map | 0 | - | 4.98 | 255,257 |
| World Currency Quiz | 0 | - | 4.92 | 304,071 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,069 |
| NATO Countries | 0 | - | 4.98 | 281,458 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,097 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,732 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 225,950 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,252 |
| Official Cities in the UK | 0 | - | 4.89 | 284,423 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,457 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,115 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,315 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,321 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,204 |
| Countries with Megacities | 0 | - | 4.99 | 264,483 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,715 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,293 |
| World Capitals by Map | 0 | - | 5.00 | 287,338 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,864 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,409 |
| World's Busiest Airports | 0 | - | 4.96 | 234,732 |
| Country Chain | 0 | - | 4.96 | 217,371 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,788 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,742 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,285 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,013 |
| Independence from Whom | 0 | - | 4.99 | 212,068 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,716 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,145 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,629 |
| Countries with Six Letters | 0 | - | 4.94 | 213,512 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,903 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,382 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,978 |
| Flags of Oceania | 0 | - | 5.00 | 260,342 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,757 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,661 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,817 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,554 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,673 |
| Countries in their Native Language | 0 | - | 4.99 | 199,025 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,300 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 173,751 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,508 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,888 |
| Monarchies of the World | 0 | - | 4.94 | 169,181 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,674 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,728 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,949 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,509 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,560 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,932 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,079 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,506 |
| Countries That End in Y | 0 | - | 4.91 | 185,860 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,754 |
| Olympic Host Countries | 0 | - | 4.98 | 201,076 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,163 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,622 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,173 |
| Every European Country Shape | 0 | - | 4.96 | 202,143 |
| Countries of the Middle East | 0 | - | 4.96 | 201,605 |
| Countries by Official Language | 0 | - | 4.95 | 195,231 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,102 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,629 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,750 |
| Counties of Ireland | 0 | - | 4.92 | 195,936 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,140 |
| Countries Bordering India | 0 | - | 4.98 | 163,544 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,740 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,957 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,130 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,672 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,231 |
| European Cities by Clue | 0 | - | 4.70 | 89,089 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,235 |
| Islands by Country #2 | 0 | - | 4.80 | 77,533 |
