| Island Countries | 0 | - | 4.99 | 713,013 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,869 |
| European Countries by Clue | 0 | - | 4.92 | 184,299 |
| Countries by Military Spending | 0 | - | 4.93 | 179,177 |
| Countries by Three Words #2 | 0 | - | 4.97 | 205,166 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,969,498 |
| US States Quiz | 0 | - | 5.00 | 17,021,158 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,659,674 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,439 |
| World Capitals Quiz | 0 | - | 5.00 | 5,113,769 |
| Europe Map Quiz | 0 | - | 5.00 | 4,793,032 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,853,300 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,049 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,783 |
| Random Capital to Country | 0 | - | 4.99 | 2,604,135 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,812,457 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,687 |
| All Country Flags of the World | 0 | - | 5.00 | 3,724,623 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,128,214 |
| Countries that Start with B | 0 | - | 4.95 | 2,308,986 |
| Countries that Start with A | 0 | - | 4.98 | 2,178,385 |
| Countries of Africa | 0 | - | 5.00 | 2,564,503 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,366 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,428 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,325 |
| Countries that Start with C | 0 | - | 4.96 | 1,833,418 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,998 |
| Countries that Start with S | 0 | - | 4.98 | 1,764,845 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,036 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,260 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,024 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,233 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,608 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,668 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,080 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,457 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,841 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,307 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,161 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,243 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,158 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,257 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,091 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 910,240 |
| Random Country to Capital | 0 | - | 4.98 | 929,996 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,896 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,092 |
| Asia Map Quiz | 0 | - | 4.99 | 926,662 |
| Countries that Start with U | 0 | - | 4.97 | 909,233 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,533 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,194 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,134 |
| Counties of England | 0 | - | 4.97 | 804,170 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,307 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,278 |
| Top World Languages | 0 | - | 4.92 | 831,251 |
| Countries of South America | 0 | - | 5.00 | 934,296 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,063 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,979 |
| Countries that Start with K | 0 | - | 4.97 | 821,751 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,830 |
| US States with an Empty Map | 0 | - | 5.00 | 629,543 |
| Countries that Start with V | 0 | - | 4.98 | 612,558 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,893 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,407 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,844 |
| Countries that Start with D | 0 | - | 4.96 | 717,793 |
| Countries That Border Russia | 0 | - | 4.98 | 464,899 |
| One Border Countries | 0 | - | 4.98 | 472,581 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,833 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,615 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,360 |
| Countries with Four Letters | 0 | - | 4.99 | 426,447 |
| Countries with the Most Borders | 0 | - | 4.97 | 391,055 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,080 |
| Countries Bordering France | 0 | - | 4.83 | 405,325 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,979 |
| Northernmost Countries | 0 | - | 4.99 | 364,595 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,576 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,038 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,224 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,877 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,264 |
| Landlocked Countries | 0 | - | 4.99 | 427,247 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,380 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,457 |
| Australia Map Quiz | 0 | - | 4.95 | 346,479 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,504 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,151 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,393 |
| Countries that Start with H | 0 | - | 4.96 | 610,530 |
| Countries that Start with J | 0 | - | 4.98 | 607,913 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,422 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,321 |
| "Land" Countries | 0 | - | 4.98 | 338,994 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,199 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,442 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,066 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,679 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,282 |
| Flags of Africa Quiz | 0 | - | 5.00 | 479,025 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,166 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,589 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,557 |
| Countries with Z | 0 | - | 4.98 | 293,007 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,946 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,521 |
| Flags of North and South America | 0 | - | 4.99 | 378,096 |
| EU Countries Quiz | 0 | - | 4.99 | 278,890 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,644 |
| Countries that Border China | 0 | - | 4.96 | 264,521 |
| French-Speaking Countries | 0 | - | 4.85 | 271,884 |
| Countries with Five Letters | 0 | - | 4.96 | 284,643 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,319 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,908 |
| Every Country Shape | 0 | - | 5.00 | 472,459 |
| Europe Capital to Country | 0 | - | 4.99 | 252,575 |
| Longest International Borders | 0 | - | 4.99 | 265,999 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,771 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,851 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,618 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,864 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,340 |
| Megacities on a World Map | 0 | - | 4.98 | 257,447 |
| World Currency Quiz | 0 | - | 4.92 | 307,558 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,515 |
| NATO Countries | 0 | - | 4.98 | 283,988 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,732 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,321 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 227,055 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,614 |
| Official Cities in the UK | 0 | - | 4.89 | 286,859 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,784 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,714 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,367 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,494 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,026 |
| Countries with Megacities | 0 | - | 4.99 | 267,850 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,879 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,916 |
| World Capitals by Map | 0 | - | 5.00 | 289,952 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,444 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,195 |
| World's Busiest Airports | 0 | - | 4.96 | 237,965 |
| Country Chain | 0 | - | 4.96 | 218,663 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,221 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,295 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,143 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,952 |
| Independence from Whom | 0 | - | 4.99 | 213,407 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,660 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,022 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,165 |
| Countries with Six Letters | 0 | - | 4.94 | 214,962 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,368 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,801 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,407 |
| Flags of Oceania | 0 | - | 5.00 | 263,447 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,087 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,544 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,311 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,641 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,593 |
| Countries in their Native Language | 0 | - | 4.99 | 199,964 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,637 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,936 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,049 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,293 |
| Monarchies of the World | 0 | - | 4.94 | 170,548 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,676 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,212 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,815 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,125 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,945 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,314 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,167 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,647 |
| Countries That End in Y | 0 | - | 4.91 | 186,176 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,969 |
| Olympic Host Countries | 0 | - | 4.98 | 202,206 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,932 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,337 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,808 |
| Every European Country Shape | 0 | - | 4.96 | 203,246 |
| Countries of the Middle East | 0 | - | 4.96 | 203,253 |
| Countries by Official Language | 0 | - | 4.95 | 196,223 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,946 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,311 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,207 |
| Counties of Ireland | 0 | - | 4.92 | 197,661 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,899 |
| Countries Bordering India | 0 | - | 4.98 | 163,888 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,439 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,218 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,471 |
| Countries with the Most Forest | 0 | - | 4.88 | 148,305 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,807 |
| European Cities by Clue | 0 | - | 4.70 | 89,214 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,453 |
| Islands by Country #2 | 0 | - | 4.80 | 77,953 |
