| Island Countries | 0 | - | 4.99 | 713,067 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,910 |
| European Countries by Clue | 0 | - | 4.92 | 184,322 |
| Countries by Military Spending | 0 | - | 4.93 | 179,198 |
| Countries by Three Words #2 | 0 | - | 4.97 | 205,224 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,982,569 |
| US States Quiz | 0 | - | 5.00 | 17,025,022 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,660,690 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,731 |
| World Capitals Quiz | 0 | - | 5.00 | 5,114,984 |
| Europe Map Quiz | 0 | - | 5.00 | 4,793,774 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,854,017 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,623 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,548,022 |
| Random Capital to Country | 0 | - | 4.99 | 2,604,507 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,813,613 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,926 |
| All Country Flags of the World | 0 | - | 5.00 | 3,726,061 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,128,654 |
| Countries that Start with B | 0 | - | 4.95 | 2,309,414 |
| Countries that Start with A | 0 | - | 4.98 | 2,178,797 |
| Countries of Africa | 0 | - | 5.00 | 2,565,148 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,513 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,678 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,539 |
| Countries that Start with C | 0 | - | 4.96 | 1,833,727 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,388,087 |
| Countries that Start with S | 0 | - | 4.98 | 1,765,132 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,304 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,659 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,615 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,515 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,827 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,937 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,329 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,546 |
| Countries that Start with I | 0 | - | 4.92 | 1,296,074 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,508 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,360 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,364 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,388 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,661 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,279 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 910,335 |
| Random Country to Capital | 0 | - | 4.98 | 930,319 |
| Countries that Start with T | 0 | - | 4.90 | 1,016,060 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,354 |
| Asia Map Quiz | 0 | - | 4.99 | 926,878 |
| Countries that Start with U | 0 | - | 4.97 | 909,355 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,781 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,512 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,196 |
| Counties of England | 0 | - | 4.97 | 804,383 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,443 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,466 |
| Top World Languages | 0 | - | 4.92 | 831,482 |
| Countries of South America | 0 | - | 5.00 | 934,518 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,201 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,084 |
| Countries that Start with K | 0 | - | 4.97 | 821,918 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,881 |
| US States with an Empty Map | 0 | - | 5.00 | 629,661 |
| Countries that Start with V | 0 | - | 4.98 | 612,646 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 511,028 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,444 |
| Flags of Asia Quiz | 0 | - | 4.99 | 622,045 |
| Countries that Start with D | 0 | - | 4.96 | 718,019 |
| Countries That Border Russia | 0 | - | 4.98 | 464,950 |
| One Border Countries | 0 | - | 4.98 | 472,675 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,880 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,702 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,464 |
| Countries with Four Letters | 0 | - | 4.99 | 426,536 |
| Countries with the Most Borders | 0 | - | 4.97 | 391,126 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,156 |
| Countries Bordering France | 0 | - | 4.83 | 405,392 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,041 |
| Northernmost Countries | 0 | - | 4.99 | 364,680 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,620 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,090 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,275 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,908 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,310 |
| Landlocked Countries | 0 | - | 4.99 | 427,409 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,429 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,514 |
| Australia Map Quiz | 0 | - | 4.95 | 346,521 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,572 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,223 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,505 |
| Countries that Start with H | 0 | - | 4.96 | 610,709 |
| Countries that Start with J | 0 | - | 4.98 | 608,080 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,510 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,375 |
| "Land" Countries | 0 | - | 4.98 | 339,065 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,228 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,472 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,161 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,721 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,306 |
| Flags of Africa Quiz | 0 | - | 5.00 | 479,212 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,213 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,622 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,652 |
| Countries with Z | 0 | - | 4.98 | 293,084 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,999 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,554 |
| Flags of North and South America | 0 | - | 4.99 | 378,226 |
| EU Countries Quiz | 0 | - | 4.99 | 278,980 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,692 |
| Countries that Border China | 0 | - | 4.96 | 264,566 |
| French-Speaking Countries | 0 | - | 4.85 | 271,932 |
| Countries with Five Letters | 0 | - | 4.96 | 284,722 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,345 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,991 |
| Every Country Shape | 0 | - | 5.00 | 472,617 |
| Europe Capital to Country | 0 | - | 4.99 | 252,631 |
| Longest International Borders | 0 | - | 4.99 | 266,024 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 278,063 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,883 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,773 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,902 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,366 |
| Megacities on a World Map | 0 | - | 4.98 | 257,538 |
| World Currency Quiz | 0 | - | 4.92 | 307,652 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,557 |
| NATO Countries | 0 | - | 4.98 | 284,071 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,752 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,377 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 227,088 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,652 |
| Official Cities in the UK | 0 | - | 4.89 | 286,929 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,840 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,728 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,395 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,735 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,054 |
| Countries with Megacities | 0 | - | 4.99 | 267,966 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,914 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,963 |
| World Capitals by Map | 0 | - | 5.00 | 290,036 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,474 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,216 |
| World's Busiest Airports | 0 | - | 4.96 | 238,067 |
| Country Chain | 0 | - | 4.96 | 218,686 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,262 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,381 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,185 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 197,168 |
| Independence from Whom | 0 | - | 4.99 | 213,451 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,696 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,053 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,183 |
| Countries with Six Letters | 0 | - | 4.94 | 215,013 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,386 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,809 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,454 |
| Flags of Oceania | 0 | - | 5.00 | 263,530 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,146 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,575 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,329 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,669 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,674 |
| Countries in their Native Language | 0 | - | 4.99 | 199,980 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,672 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,973 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,066 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,409 |
| Monarchies of the World | 0 | - | 4.94 | 170,580 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,727 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,244 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,835 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,143 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,996 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,326 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,197 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,689 |
| Countries That End in Y | 0 | - | 4.91 | 186,189 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,994 |
| Olympic Host Countries | 0 | - | 4.98 | 202,263 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,978 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,353 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,840 |
| Every European Country Shape | 0 | - | 4.96 | 203,282 |
| Countries of the Middle East | 0 | - | 4.96 | 203,297 |
| Countries by Official Language | 0 | - | 4.95 | 196,261 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,964 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,334 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,222 |
| Counties of Ireland | 0 | - | 4.92 | 197,707 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,920 |
| Countries Bordering India | 0 | - | 4.98 | 163,905 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,457 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,229 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,499 |
| Countries with the Most Forest | 0 | - | 4.88 | 148,313 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,822 |
| European Cities by Clue | 0 | - | 4.70 | 89,220 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,458 |
| Islands by Country #2 | 0 | - | 4.80 | 77,967 |
