| Island Countries | 0 | - | 4.99 | 713,051 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,896 |
| European Countries by Clue | 0 | - | 4.92 | 184,319 |
| Countries by Military Spending | 0 | - | 4.93 | 179,193 |
| Countries by Three Words #2 | 0 | - | 4.97 | 205,207 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,979,105 |
| US States Quiz | 0 | - | 5.00 | 17,024,104 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,660,360 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,643 |
| World Capitals Quiz | 0 | - | 5.00 | 5,114,640 |
| Europe Map Quiz | 0 | - | 5.00 | 4,793,604 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,853,842 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,468 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,961 |
| Random Capital to Country | 0 | - | 4.99 | 2,604,438 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,813,304 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,858 |
| All Country Flags of the World | 0 | - | 5.00 | 3,725,666 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,128,483 |
| Countries that Start with B | 0 | - | 4.95 | 2,309,302 |
| Countries that Start with A | 0 | - | 4.98 | 2,178,686 |
| Countries of Africa | 0 | - | 5.00 | 2,564,920 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,480 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,602 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,486 |
| Countries that Start with C | 0 | - | 4.96 | 1,833,640 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,388,069 |
| Countries that Start with S | 0 | - | 4.98 | 1,765,059 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,230 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,531 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,459 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,430 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,758 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,858 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,281 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,510 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,993 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,457 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,307 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,328 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,326 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,576 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,222 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 910,317 |
| Random Country to Capital | 0 | - | 4.98 | 930,242 |
| Countries that Start with T | 0 | - | 4.90 | 1,016,013 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,275 |
| Asia Map Quiz | 0 | - | 4.99 | 926,812 |
| Countries that Start with U | 0 | - | 4.97 | 909,324 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,720 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,403 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,176 |
| Counties of England | 0 | - | 4.97 | 804,342 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,429 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,425 |
| Top World Languages | 0 | - | 4.92 | 831,421 |
| Countries of South America | 0 | - | 5.00 | 934,463 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,162 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,042 |
| Countries that Start with K | 0 | - | 4.97 | 821,873 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,865 |
| US States with an Empty Map | 0 | - | 5.00 | 629,631 |
| Countries that Start with V | 0 | - | 4.98 | 612,625 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,975 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,434 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,998 |
| Countries that Start with D | 0 | - | 4.96 | 717,943 |
| Countries That Border Russia | 0 | - | 4.98 | 464,936 |
| One Border Countries | 0 | - | 4.98 | 472,649 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,873 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,671 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,439 |
| Countries with Four Letters | 0 | - | 4.99 | 426,513 |
| Countries with the Most Borders | 0 | - | 4.97 | 391,107 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,134 |
| Countries Bordering France | 0 | - | 4.83 | 405,377 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,030 |
| Northernmost Countries | 0 | - | 4.99 | 364,654 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,606 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,078 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,267 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,900 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,295 |
| Landlocked Countries | 0 | - | 4.99 | 427,363 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,414 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,497 |
| Australia Map Quiz | 0 | - | 4.95 | 346,513 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,556 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,203 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,481 |
| Countries that Start with H | 0 | - | 4.96 | 610,650 |
| Countries that Start with J | 0 | - | 4.98 | 608,027 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,497 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,362 |
| "Land" Countries | 0 | - | 4.98 | 339,055 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,216 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,467 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,133 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,712 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,298 |
| Flags of Africa Quiz | 0 | - | 5.00 | 479,165 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,206 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,617 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,621 |
| Countries with Z | 0 | - | 4.98 | 293,063 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,985 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,545 |
| Flags of North and South America | 0 | - | 4.99 | 378,198 |
| EU Countries Quiz | 0 | - | 4.99 | 278,955 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,676 |
| Countries that Border China | 0 | - | 4.96 | 264,554 |
| French-Speaking Countries | 0 | - | 4.85 | 271,926 |
| Countries with Five Letters | 0 | - | 4.96 | 284,706 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,339 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,973 |
| Every Country Shape | 0 | - | 5.00 | 472,560 |
| Europe Capital to Country | 0 | - | 4.99 | 252,615 |
| Longest International Borders | 0 | - | 4.99 | 266,017 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,987 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,872 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,727 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,887 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,358 |
| Megacities on a World Map | 0 | - | 4.98 | 257,514 |
| World Currency Quiz | 0 | - | 4.92 | 307,625 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,546 |
| NATO Countries | 0 | - | 4.98 | 284,052 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,744 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,366 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 227,081 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,643 |
| Official Cities in the UK | 0 | - | 4.89 | 286,909 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,826 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,724 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,394 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,651 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,044 |
| Countries with Megacities | 0 | - | 4.99 | 267,937 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,905 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,949 |
| World Capitals by Map | 0 | - | 5.00 | 290,008 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,465 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,211 |
| World's Busiest Airports | 0 | - | 4.96 | 238,032 |
| Country Chain | 0 | - | 4.96 | 218,679 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,252 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,355 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,179 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 197,098 |
| Independence from Whom | 0 | - | 4.99 | 213,435 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,687 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,044 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,174 |
| Countries with Six Letters | 0 | - | 4.94 | 215,003 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,382 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,808 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,442 |
| Flags of Oceania | 0 | - | 5.00 | 263,514 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,134 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,565 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,325 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,663 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,650 |
| Countries in their Native Language | 0 | - | 4.99 | 199,975 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,662 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,959 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,062 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,378 |
| Monarchies of the World | 0 | - | 4.94 | 170,573 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,717 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,229 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,828 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,141 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,991 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,322 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,188 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,678 |
| Countries That End in Y | 0 | - | 4.91 | 186,182 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,985 |
| Olympic Host Countries | 0 | - | 4.98 | 202,242 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,969 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,347 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,831 |
| Every European Country Shape | 0 | - | 4.96 | 203,277 |
| Countries of the Middle East | 0 | - | 4.96 | 203,285 |
| Countries by Official Language | 0 | - | 4.95 | 196,250 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,960 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,326 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,216 |
| Counties of Ireland | 0 | - | 4.92 | 197,691 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,912 |
| Countries Bordering India | 0 | - | 4.98 | 163,904 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,451 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,225 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,492 |
| Countries with the Most Forest | 0 | - | 4.88 | 148,311 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,819 |
| European Cities by Clue | 0 | - | 4.70 | 89,219 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,457 |
| Islands by Country #2 | 0 | - | 4.80 | 77,962 |
