| Island Countries | 0 | - | 4.99 | 712,913 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,826 |
| European Countries by Clue | 0 | - | 4.92 | 184,268 |
| Countries by Military Spending | 0 | - | 4.93 | 179,146 |
| Countries by Three Words #2 | 0 | - | 4.97 | 205,073 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,951,337 |
| US States Quiz | 0 | - | 5.00 | 17,015,738 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,658,396 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,015 |
| World Capitals Quiz | 0 | - | 5.00 | 5,112,184 |
| Europe Map Quiz | 0 | - | 5.00 | 4,791,968 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,852,140 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,396,325 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,422 |
| Random Capital to Country | 0 | - | 4.99 | 2,603,619 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,810,736 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,305 |
| All Country Flags of the World | 0 | - | 5.00 | 3,722,400 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,127,572 |
| Countries that Start with B | 0 | - | 4.95 | 2,308,440 |
| Countries that Start with A | 0 | - | 4.98 | 2,177,817 |
| Countries of Africa | 0 | - | 5.00 | 2,563,521 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,183 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,103 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,036 |
| Countries that Start with C | 0 | - | 4.96 | 1,833,006 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,843 |
| Countries that Start with S | 0 | - | 4.98 | 1,764,482 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,676 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,703 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,892,217 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,839 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,319 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,294 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,831 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,364 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,528 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,023 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,876 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,009 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,858 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,260,615 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,807 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 910,137 |
| Random Country to Capital | 0 | - | 4.98 | 929,631 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,657 |
| Biggest Cities in the United States | 0 | - | 4.94 | 988,749 |
| Asia Map Quiz | 0 | - | 4.99 | 926,345 |
| Countries that Start with U | 0 | - | 4.97 | 909,048 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,026 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,877 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,978 |
| Counties of England | 0 | - | 4.97 | 803,954 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,179 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,061 |
| Top World Languages | 0 | - | 4.92 | 830,969 |
| Countries of South America | 0 | - | 5.00 | 933,956 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,859 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,730 |
| Countries that Start with K | 0 | - | 4.97 | 821,533 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,726 |
| US States with an Empty Map | 0 | - | 5.00 | 629,381 |
| Countries that Start with V | 0 | - | 4.98 | 612,431 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,743 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 414,340 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,567 |
| Countries that Start with D | 0 | - | 4.96 | 717,493 |
| Countries That Border Russia | 0 | - | 4.98 | 464,789 |
| One Border Countries | 0 | - | 4.98 | 472,440 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,772 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,498 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,221 |
| Countries with Four Letters | 0 | - | 4.99 | 426,318 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,943 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,980 |
| Countries Bordering France | 0 | - | 4.83 | 405,240 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,874 |
| Northernmost Countries | 0 | - | 4.99 | 364,481 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,486 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,981 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,135 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,826 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,228 |
| Landlocked Countries | 0 | - | 4.99 | 427,022 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,272 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,385 |
| Australia Map Quiz | 0 | - | 4.95 | 346,415 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,405 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,054 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,246 |
| Countries that Start with H | 0 | - | 4.96 | 610,316 |
| Countries that Start with J | 0 | - | 4.98 | 607,705 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,299 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,239 |
| "Land" Countries | 0 | - | 4.98 | 338,901 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,149 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,401 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,878 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,632 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,229 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,762 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,079 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,556 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,426 |
| Countries with Z | 0 | - | 4.98 | 292,915 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,879 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,473 |
| Flags of North and South America | 0 | - | 4.99 | 377,829 |
| EU Countries Quiz | 0 | - | 4.99 | 278,750 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,563 |
| Countries that Border China | 0 | - | 4.96 | 264,463 |
| French-Speaking Countries | 0 | - | 4.85 | 271,840 |
| Countries with Five Letters | 0 | - | 4.96 | 284,539 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,294 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,791 |
| Every Country Shape | 0 | - | 5.00 | 472,202 |
| Europe Capital to Country | 0 | - | 4.99 | 252,489 |
| Longest International Borders | 0 | - | 4.99 | 265,954 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,540 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,812 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,375 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,805 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,281 |
| Megacities on a World Map | 0 | - | 4.98 | 257,356 |
| World Currency Quiz | 0 | - | 4.92 | 307,388 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,453 |
| NATO Countries | 0 | - | 4.98 | 283,884 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,692 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,241 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 227,010 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,569 |
| Official Cities in the UK | 0 | - | 4.89 | 286,741 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,719 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,687 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,313 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,367 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,978 |
| Countries with Megacities | 0 | - | 4.99 | 267,710 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,836 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,858 |
| World Capitals by Map | 0 | - | 5.00 | 289,823 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,432 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,156 |
| World's Busiest Airports | 0 | - | 4.96 | 237,840 |
| Country Chain | 0 | - | 4.96 | 218,619 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,146 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,183 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,082 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,832 |
| Independence from Whom | 0 | - | 4.99 | 213,350 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,615 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,999 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,129 |
| Countries with Six Letters | 0 | - | 4.94 | 214,885 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,334 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,784 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,341 |
| Flags of Oceania | 0 | - | 5.00 | 263,297 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,013 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,502 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,286 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,605 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,477 |
| Countries in their Native Language | 0 | - | 4.99 | 199,920 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,586 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,887 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,029 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,153 |
| Monarchies of the World | 0 | - | 4.94 | 170,477 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,626 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,148 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,778 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,096 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,887 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,298 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,137 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,599 |
| Countries That End in Y | 0 | - | 4.91 | 186,158 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,917 |
| Olympic Host Countries | 0 | - | 4.98 | 202,166 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,860 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,329 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,780 |
| Every European Country Shape | 0 | - | 4.96 | 203,213 |
| Countries of the Middle East | 0 | - | 4.96 | 203,192 |
| Countries by Official Language | 0 | - | 4.95 | 196,172 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,923 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,277 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,191 |
| Counties of Ireland | 0 | - | 4.92 | 197,596 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,872 |
| Countries Bordering India | 0 | - | 4.98 | 163,868 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,417 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,203 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,432 |
| Countries with the Most Forest | 0 | - | 4.88 | 148,276 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,787 |
| European Cities by Clue | 0 | - | 4.70 | 89,209 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,446 |
| Islands by Country #2 | 0 | - | 4.80 | 77,941 |
