| Island Countries | 0 | - | 4.99 | 712,702 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,693 |
| European Countries by Clue | 0 | - | 4.92 | 184,193 |
| Countries by Military Spending | 0 | - | 4.93 | 179,046 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,829 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,908,174 |
| US States Quiz | 0 | - | 5.00 | 17,003,361 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,655,106 |
| United States Map Quiz | 0 | - | 4.98 | 4,172,033 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,549 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,553 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,850,155 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,857 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,504 |
| Random Capital to Country | 0 | - | 4.99 | 2,602,330 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,806,878 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,284 |
| All Country Flags of the World | 0 | - | 5.00 | 3,717,044 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,125,979 |
| Countries that Start with B | 0 | - | 4.95 | 2,307,200 |
| Countries that Start with A | 0 | - | 4.98 | 2,176,489 |
| Countries of Africa | 0 | - | 5.00 | 2,561,408 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,753 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,699,321 |
| South America Map Quiz | 0 | - | 5.00 | 1,557,050 |
| Countries that Start with C | 0 | - | 4.96 | 1,832,047 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,491 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,646 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,724 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,370 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,504 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,022 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,644 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,559 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,140 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,119 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,938 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,395 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,179 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,497 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,246 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,018 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,183 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,876 |
| Random Country to Capital | 0 | - | 4.98 | 928,791 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,175 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,634 |
| Asia Map Quiz | 0 | - | 4.99 | 925,585 |
| Countries that Start with U | 0 | - | 4.97 | 908,697 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,139 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,067 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,644 |
| Counties of England | 0 | - | 4.97 | 803,288 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,791 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,686 |
| Top World Languages | 0 | - | 4.92 | 830,277 |
| Countries of South America | 0 | - | 5.00 | 933,206 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,190 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,155 |
| Countries that Start with K | 0 | - | 4.97 | 821,054 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,546 |
| US States with an Empty Map | 0 | - | 5.00 | 628,958 |
| Countries that Start with V | 0 | - | 4.98 | 612,172 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,375 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,202 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,802 |
| Countries that Start with D | 0 | - | 4.96 | 716,826 |
| Countries That Border Russia | 0 | - | 4.98 | 464,608 |
| One Border Countries | 0 | - | 4.98 | 472,140 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,620 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,150 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,913 |
| Countries with Four Letters | 0 | - | 4.99 | 426,010 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,733 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,740 |
| Countries Bordering France | 0 | - | 4.83 | 405,021 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,645 |
| Northernmost Countries | 0 | - | 4.99 | 364,202 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,329 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,790 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,953 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,734 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,121 |
| Landlocked Countries | 0 | - | 4.99 | 426,318 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,043 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,223 |
| Australia Map Quiz | 0 | - | 4.95 | 346,253 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,181 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,800 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,921 |
| Countries that Start with H | 0 | - | 4.96 | 609,866 |
| Countries that Start with J | 0 | - | 4.98 | 607,233 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,039 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,036 |
| "Land" Countries | 0 | - | 4.98 | 338,498 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,045 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,291 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,468 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,510 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,130 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,083 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,893 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,442 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,057 |
| Countries with Z | 0 | - | 4.98 | 292,559 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,732 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,311 |
| Flags of North and South America | 0 | - | 4.99 | 377,323 |
| EU Countries Quiz | 0 | - | 4.99 | 278,138 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,346 |
| Countries that Border China | 0 | - | 4.96 | 264,359 |
| French-Speaking Countries | 0 | - | 4.85 | 271,740 |
| Countries with Five Letters | 0 | - | 4.96 | 284,121 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,217 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,548 |
| Every Country Shape | 0 | - | 5.00 | 471,525 |
| Europe Capital to Country | 0 | - | 4.99 | 252,227 |
| Longest International Borders | 0 | - | 4.99 | 265,872 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,191 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,724 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,782 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,691 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,186 |
| Megacities on a World Map | 0 | - | 4.98 | 257,095 |
| World Currency Quiz | 0 | - | 4.92 | 307,000 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,344 |
| NATO Countries | 0 | - | 4.98 | 283,607 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,618 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,063 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,892 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,435 |
| Official Cities in the UK | 0 | - | 4.89 | 286,449 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,565 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,617 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,184 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,222 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,876 |
| Countries with Megacities | 0 | - | 4.99 | 267,351 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,701 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,665 |
| World Capitals by Map | 0 | - | 5.00 | 289,579 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,355 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,033 |
| World's Busiest Airports | 0 | - | 4.96 | 237,514 |
| Country Chain | 0 | - | 4.96 | 218,517 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,007 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,863 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,841 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,739 |
| Independence from Whom | 0 | - | 4.99 | 213,176 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,500 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,920 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,063 |
| Countries with Six Letters | 0 | - | 4.94 | 214,588 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,282 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,743 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,194 |
| Flags of Oceania | 0 | - | 5.00 | 262,933 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,861 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,414 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,233 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,528 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,170 |
| Countries in their Native Language | 0 | - | 4.99 | 199,804 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,444 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,751 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,962 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,514 |
| Monarchies of the World | 0 | - | 4.94 | 170,321 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,358 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,030 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,691 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,032 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,682 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,257 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,051 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,339 |
| Countries That End in Y | 0 | - | 4.91 | 186,105 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,800 |
| Olympic Host Countries | 0 | - | 4.98 | 202,038 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,684 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,276 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,710 |
| Every European Country Shape | 0 | - | 4.96 | 203,083 |
| Countries of the Middle East | 0 | - | 4.96 | 203,031 |
| Countries by Official Language | 0 | - | 4.95 | 196,077 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,856 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,194 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,151 |
| Counties of Ireland | 0 | - | 4.92 | 197,405 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,797 |
| Countries Bordering India | 0 | - | 4.98 | 163,835 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,333 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,165 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,328 |
| Countries with the Most Forest | 0 | - | 4.87 | 148,074 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,735 |
| European Cities by Clue | 0 | - | 4.70 | 89,181 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,424 |
| Islands by Country #2 | 0 | - | 4.80 | 77,905 |
