| Island Countries | 0 | - | 4.99 | 713,043 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,892 |
| European Countries by Clue | 0 | - | 4.92 | 184,318 |
| Countries by Military Spending | 0 | - | 4.93 | 179,190 |
| Countries by Three Words #2 | 0 | - | 4.97 | 205,201 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,977,653 |
| US States Quiz | 0 | - | 5.00 | 17,023,663 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,660,274 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,619 |
| World Capitals Quiz | 0 | - | 5.00 | 5,114,514 |
| Europe Map Quiz | 0 | - | 5.00 | 4,793,527 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,853,781 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,424 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,927 |
| Random Capital to Country | 0 | - | 4.99 | 2,604,393 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,813,169 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,826 |
| All Country Flags of the World | 0 | - | 5.00 | 3,725,518 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,128,442 |
| Countries that Start with B | 0 | - | 4.95 | 2,309,259 |
| Countries that Start with A | 0 | - | 4.98 | 2,178,642 |
| Countries of Africa | 0 | - | 5.00 | 2,564,849 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,463 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,565 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,469 |
| Countries that Start with C | 0 | - | 4.96 | 1,833,603 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,388,064 |
| Countries that Start with S | 0 | - | 4.98 | 1,765,032 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,207 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,502 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,383 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,406 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,734 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,833 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,266 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,501 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,967 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,442 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,292 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,312 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,302 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,509 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,204 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 910,309 |
| Random Country to Capital | 0 | - | 4.98 | 930,181 |
| Countries that Start with T | 0 | - | 4.90 | 1,016,001 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,256 |
| Asia Map Quiz | 0 | - | 4.99 | 926,796 |
| Countries that Start with U | 0 | - | 4.97 | 909,313 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,697 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,353 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,165 |
| Counties of England | 0 | - | 4.97 | 804,326 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,415 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,413 |
| Top World Languages | 0 | - | 4.92 | 831,400 |
| Countries of South America | 0 | - | 5.00 | 934,439 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,152 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,036 |
| Countries that Start with K | 0 | - | 4.97 | 821,853 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,857 |
| US States with an Empty Map | 0 | - | 5.00 | 629,620 |
| Countries that Start with V | 0 | - | 4.98 | 612,618 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,958 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,432 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,979 |
| Countries that Start with D | 0 | - | 4.96 | 717,927 |
| Countries That Border Russia | 0 | - | 4.98 | 464,930 |
| One Border Countries | 0 | - | 4.98 | 472,637 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,867 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,666 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,430 |
| Countries with Four Letters | 0 | - | 4.99 | 426,507 |
| Countries with the Most Borders | 0 | - | 4.97 | 391,100 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,130 |
| Countries Bordering France | 0 | - | 4.83 | 405,368 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,021 |
| Northernmost Countries | 0 | - | 4.99 | 364,646 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,604 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,074 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,262 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,895 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,289 |
| Landlocked Countries | 0 | - | 4.99 | 427,338 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,408 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,492 |
| Australia Map Quiz | 0 | - | 4.95 | 346,511 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,544 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,194 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,471 |
| Countries that Start with H | 0 | - | 4.96 | 610,638 |
| Countries that Start with J | 0 | - | 4.98 | 608,014 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,484 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,355 |
| "Land" Countries | 0 | - | 4.98 | 339,045 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,215 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,461 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,122 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,706 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,293 |
| Flags of Africa Quiz | 0 | - | 5.00 | 479,144 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,202 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,609 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,610 |
| Countries with Z | 0 | - | 4.98 | 293,052 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,974 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,541 |
| Flags of North and South America | 0 | - | 4.99 | 378,179 |
| EU Countries Quiz | 0 | - | 4.99 | 278,944 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,671 |
| Countries that Border China | 0 | - | 4.96 | 264,548 |
| French-Speaking Countries | 0 | - | 4.85 | 271,916 |
| Countries with Five Letters | 0 | - | 4.96 | 284,701 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,334 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,966 |
| Every Country Shape | 0 | - | 5.00 | 472,542 |
| Europe Capital to Country | 0 | - | 4.99 | 252,608 |
| Longest International Borders | 0 | - | 4.99 | 266,014 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,963 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,868 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,707 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,887 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,354 |
| Megacities on a World Map | 0 | - | 4.98 | 257,506 |
| World Currency Quiz | 0 | - | 4.92 | 307,609 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,542 |
| NATO Countries | 0 | - | 4.98 | 284,043 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,743 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,356 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 227,076 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,639 |
| Official Cities in the UK | 0 | - | 4.89 | 286,904 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,820 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,721 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,391 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,613 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,041 |
| Countries with Megacities | 0 | - | 4.99 | 267,928 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,901 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,940 |
| World Capitals by Map | 0 | - | 5.00 | 290,001 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,461 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,207 |
| World's Busiest Airports | 0 | - | 4.96 | 238,025 |
| Country Chain | 0 | - | 4.96 | 218,677 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,249 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,342 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,175 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 197,068 |
| Independence from Whom | 0 | - | 4.99 | 213,432 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,681 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,043 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,171 |
| Countries with Six Letters | 0 | - | 4.94 | 214,995 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,382 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,805 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,434 |
| Flags of Oceania | 0 | - | 5.00 | 263,504 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,126 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,560 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,325 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,662 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,638 |
| Countries in their Native Language | 0 | - | 4.99 | 199,972 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,660 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,957 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,058 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,364 |
| Monarchies of the World | 0 | - | 4.94 | 170,568 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,709 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,226 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,827 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,137 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,983 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,320 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,187 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,671 |
| Countries That End in Y | 0 | - | 4.91 | 186,180 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,983 |
| Olympic Host Countries | 0 | - | 4.98 | 202,239 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,968 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,344 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,831 |
| Every European Country Shape | 0 | - | 4.96 | 203,263 |
| Countries of the Middle East | 0 | - | 4.96 | 203,278 |
| Countries by Official Language | 0 | - | 4.95 | 196,242 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,958 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,323 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,213 |
| Counties of Ireland | 0 | - | 4.92 | 197,690 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,911 |
| Countries Bordering India | 0 | - | 4.98 | 163,901 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,449 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,223 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,487 |
| Countries with the Most Forest | 0 | - | 4.88 | 148,311 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,814 |
| European Cities by Clue | 0 | - | 4.70 | 89,217 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,456 |
| Islands by Country #2 | 0 | - | 4.80 | 77,960 |
