| Island Countries | 0 | - | 4.99 | 707,609 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,207 |
| European Countries by Clue | 0 | - | 4.92 | 182,366 |
| Countries by Military Spending | 0 | - | 4.93 | 176,398 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,493 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,917,592 |
| US States Quiz | 0 | - | 5.00 | 16,700,935 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,928 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,841 |
| World Capitals Quiz | 0 | - | 5.00 | 5,031,274 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,345 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,801,026 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,244 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,321 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,960 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,409 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,307 |
| All Country Flags of the World | 0 | - | 5.00 | 3,601,955 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,970 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,817 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,735 |
| Countries of Africa | 0 | - | 5.00 | 2,507,866 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,472 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,644 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,223 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,265 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,921 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,482 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,035 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,042 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,232 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,737 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,293 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,476 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,771 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,791 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,238 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,519 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,416 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,382 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,702 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,643 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,851 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,198 |
| Random Country to Capital | 0 | - | 4.98 | 911,592 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,191 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,637 |
| Asia Map Quiz | 0 | - | 4.99 | 907,028 |
| Countries that Start with U | 0 | - | 4.97 | 899,909 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,375 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,651 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,654 |
| Counties of England | 0 | - | 4.97 | 789,195 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,961 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,311 |
| Top World Languages | 0 | - | 4.92 | 813,124 |
| Countries of South America | 0 | - | 5.00 | 914,639 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,246 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,902 |
| Countries that Start with K | 0 | - | 4.97 | 809,378 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,157 |
| US States with an Empty Map | 0 | - | 5.00 | 618,837 |
| Countries that Start with V | 0 | - | 4.98 | 605,082 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,859 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,178 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,565 |
| Countries that Start with D | 0 | - | 4.96 | 701,509 |
| Countries That Border Russia | 0 | - | 4.98 | 458,918 |
| One Border Countries | 0 | - | 4.98 | 464,362 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,839 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,261 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,836 |
| Countries with Four Letters | 0 | - | 4.99 | 418,524 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,756 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,765 |
| Countries Bordering France | 0 | - | 4.83 | 399,097 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,625 |
| Northernmost Countries | 0 | - | 4.99 | 357,710 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,306 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,107 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,049 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,268 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,087 |
| Landlocked Countries | 0 | - | 4.99 | 413,585 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,202 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,362 |
| Australia Map Quiz | 0 | - | 4.94 | 342,482 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,785 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,617 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,516 |
| Countries that Start with H | 0 | - | 4.96 | 597,934 |
| Countries that Start with J | 0 | - | 4.98 | 596,002 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,402 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,865 |
| "Land" Countries | 0 | - | 4.98 | 333,644 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,388 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,688 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,913 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,451 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,537 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,386 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,826 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,291 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,104 |
| Countries with Z | 0 | - | 4.98 | 287,873 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,126 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,928 |
| Flags of North and South America | 0 | - | 4.99 | 367,225 |
| EU Countries Quiz | 0 | - | 4.99 | 269,920 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,272 |
| Countries that Border China | 0 | - | 4.96 | 261,816 |
| French-Speaking Countries | 0 | - | 4.85 | 268,796 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,680 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,237 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,923 |
| Every Country Shape | 0 | - | 5.00 | 458,938 |
| Europe Capital to Country | 0 | - | 4.99 | 247,872 |
| Longest International Borders | 0 | - | 4.99 | 263,542 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,302 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,853 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,905 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,658 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,819 |
| Megacities on a World Map | 0 | - | 4.98 | 250,959 |
| World Currency Quiz | 0 | - | 4.92 | 298,468 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,344 |
| NATO Countries | 0 | - | 4.98 | 275,734 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,896 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,145 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,266 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,456 |
| Official Cities in the UK | 0 | - | 4.89 | 280,542 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,128 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,209 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,307 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,411 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,469 |
| Countries with Megacities | 0 | - | 4.99 | 246,870 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,768 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,957 |
| World Capitals by Map | 0 | - | 5.00 | 283,206 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,937 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,376 |
| World's Busiest Airports | 0 | - | 4.94 | 210,426 |
| Country Chain | 0 | - | 4.96 | 215,724 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,391 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,800 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,628 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,938 |
| Independence from Whom | 0 | - | 4.99 | 209,684 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,956 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,643 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,588 |
| Countries with Six Letters | 0 | - | 4.93 | 210,358 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,595 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,476 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,406 |
| Flags of Oceania | 0 | - | 5.00 | 255,199 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,472 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,983 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,973 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,360 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,174 |
| Countries in their Native Language | 0 | - | 4.99 | 196,632 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,329 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,326 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,395 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,368 |
| Monarchies of the World | 0 | - | 4.94 | 166,606 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,549 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,748 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,402 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,037 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,179 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,081 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,915 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,868 |
| Countries That End in Y | 0 | - | 4.90 | 185,201 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,260 |
| Olympic Host Countries | 0 | - | 4.98 | 198,897 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,741 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,923 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,115 |
| Every European Country Shape | 0 | - | 4.96 | 200,171 |
| Countries of the Middle East | 0 | - | 4.96 | 198,921 |
| Countries by Official Language | 0 | - | 4.95 | 192,765 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,199 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,082 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,734 |
| Counties of Ireland | 0 | - | 4.92 | 193,079 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,441 |
| Countries Bordering India | 0 | - | 4.98 | 162,603 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,654 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,502 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,655 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,631 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,427 |
| European Cities by Clue | 0 | - | 4.70 | 88,803 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,949 |
| Islands by Country #2 | 0 | - | 4.80 | 76,990 |
