| Island Countries | 0 | - | 4.99 | 709,058 |
| Countries by Three Words #1 | 0 | - | 4.95 | 264,737 |
| European Countries by Clue | 0 | - | 4.92 | 183,313 |
| Countries by Military Spending | 0 | - | 4.93 | 177,059 |
| Countries by Three Words #2 | 0 | - | 4.97 | 201,244 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,205,247 |
| US States Quiz | 0 | - | 5.00 | 16,793,276 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,606,735 |
| United States Map Quiz | 0 | - | 4.98 | 4,149,568 |
| World Capitals Quiz | 0 | - | 5.00 | 5,053,690 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,467 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,815,835 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,807 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,532,030 |
| Random Capital to Country | 0 | - | 4.99 | 2,585,194 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,744,618 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,685 |
| All Country Flags of the World | 0 | - | 5.00 | 3,634,737 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,095,256 |
| Countries that Start with B | 0 | - | 4.95 | 2,287,357 |
| Countries that Start with A | 0 | - | 4.98 | 2,155,213 |
| Countries of Africa | 0 | - | 5.00 | 2,523,564 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,556 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,683,898 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,411 |
| Countries that Start with C | 0 | - | 4.96 | 1,816,334 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,619 |
| Countries that Start with S | 0 | - | 4.98 | 1,749,850 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,758 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,579,147 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,572 |
| Countries that Start with G | 0 | - | 4.97 | 1,498,025 |
| Countries that Start with M | 0 | - | 4.97 | 1,377,622 |
| Countries that Start with E | 0 | - | 4.95 | 1,372,484 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,057 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,046 |
| Countries that Start with I | 0 | - | 4.92 | 1,284,257 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,527 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,002 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,090,191 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,749 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,236,161 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,723 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 905,748 |
| Random Country to Capital | 0 | - | 4.98 | 915,758 |
| Countries that Start with T | 0 | - | 4.90 | 1,007,113 |
| Biggest Cities in the United States | 0 | - | 4.93 | 972,881 |
| Asia Map Quiz | 0 | - | 4.99 | 911,760 |
| Countries that Start with U | 0 | - | 4.97 | 902,280 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,958 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,150 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 731,702 |
| Counties of England | 0 | - | 4.97 | 793,138 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,168 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,043 |
| Top World Languages | 0 | - | 4.92 | 818,106 |
| Countries of South America | 0 | - | 5.00 | 920,436 |
| Africa Capitals Quiz | 0 | - | 4.99 | 734,169 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,639 |
| Countries that Start with K | 0 | - | 4.97 | 812,507 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,530 |
| US States with an Empty Map | 0 | - | 5.00 | 621,790 |
| Countries that Start with V | 0 | - | 4.98 | 607,438 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 504,448 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,016 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,674 |
| Countries that Start with D | 0 | - | 4.96 | 705,655 |
| Countries That Border Russia | 0 | - | 4.98 | 460,540 |
| One Border Countries | 0 | - | 4.98 | 466,738 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,875 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,519 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,158 |
| Countries with Four Letters | 0 | - | 4.99 | 420,665 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,279 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,294 |
| Countries Bordering France | 0 | - | 4.83 | 401,336 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,061 |
| Northernmost Countries | 0 | - | 4.99 | 359,669 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,418 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,056 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,155 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,248 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,751 |
| Landlocked Countries | 0 | - | 4.99 | 417,186 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,767 |
| World Map without 12 Countries | 0 | - | 4.97 | 343,504 |
| Australia Map Quiz | 0 | - | 4.94 | 343,416 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,011 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,639 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,219 |
| Countries that Start with H | 0 | - | 4.96 | 601,379 |
| Countries that Start with J | 0 | - | 4.98 | 599,357 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,961 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,121 |
| "Land" Countries | 0 | - | 4.98 | 335,064 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,016 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 288,879 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,208 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,275 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,844 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,469 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,509 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,945 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 269,029 |
| Countries with Z | 0 | - | 4.98 | 289,146 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,008 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,032 |
| Flags of North and South America | 0 | - | 4.99 | 370,669 |
| EU Countries Quiz | 0 | - | 4.99 | 271,989 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,493 |
| Countries that Border China | 0 | - | 4.96 | 262,600 |
| French-Speaking Countries | 0 | - | 4.85 | 269,894 |
| Countries with Five Letters | 0 | - | 4.96 | 269,921 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,744 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,655 |
| Every Country Shape | 0 | - | 5.00 | 462,287 |
| Europe Capital to Country | 0 | - | 4.99 | 249,070 |
| Longest International Borders | 0 | - | 4.99 | 264,387 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,765 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,626 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,448 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,738 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,421 |
| Megacities on a World Map | 0 | - | 4.98 | 252,532 |
| World Currency Quiz | 0 | - | 4.92 | 300,904 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,161 |
| NATO Countries | 0 | - | 4.98 | 278,419 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,331 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,265 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,968 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,703 |
| Official Cities in the UK | 0 | - | 4.89 | 282,380 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,091 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,630 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,327 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,410 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,119 |
| Countries with Megacities | 0 | - | 4.99 | 249,366 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,691 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,910 |
| World Capitals by Map | 0 | - | 5.00 | 284,999 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,330 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,337 |
| World's Busiest Airports | 0 | - | 4.96 | 230,410 |
| Country Chain | 0 | - | 4.96 | 216,516 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,419 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,464 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,340 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,574 |
| Independence from Whom | 0 | - | 4.99 | 210,945 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,423 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,125 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,102 |
| Countries with Six Letters | 0 | - | 4.93 | 211,672 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,393 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,811 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,559 |
| Flags of Oceania | 0 | - | 5.00 | 257,297 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,360 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,807 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,324 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,812 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,187 |
| Countries in their Native Language | 0 | - | 4.99 | 197,808 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,291 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,489 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,738 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,950 |
| Monarchies of the World | 0 | - | 4.94 | 167,558 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,271 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,449 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,107 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,498 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,218 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,414 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,419 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,448 |
| Countries That End in Y | 0 | - | 4.90 | 185,497 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,211 |
| Olympic Host Countries | 0 | - | 4.98 | 199,763 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,853 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,213 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,578 |
| Every European Country Shape | 0 | - | 4.96 | 200,968 |
| Countries of the Middle East | 0 | - | 4.96 | 200,008 |
| Countries by Official Language | 0 | - | 4.95 | 194,203 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,605 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,883 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,063 |
| Counties of Ireland | 0 | - | 4.92 | 194,186 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,979 |
| Countries Bordering India | 0 | - | 4.98 | 163,229 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,983 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,680 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,508 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,929 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,657 |
| European Cities by Clue | 0 | - | 4.70 | 88,965 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,082 |
| Islands by Country #2 | 0 | - | 4.80 | 77,233 |
