| Island Countries | 0 | - | 4.99 | 707,302 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,049 |
| European Countries by Clue | 0 | - | 4.92 | 182,308 |
| Countries by Military Spending | 0 | - | 4.93 | 176,282 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,194 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,862,717 |
| US States Quiz | 0 | - | 5.00 | 16,682,394 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,584,268 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,955 |
| World Capitals Quiz | 0 | - | 5.00 | 5,026,536 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,039 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,798,028 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,413 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,524,867 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,535 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,710,801 |
| Africa Map Quiz | 0 | - | 5.00 | 2,102,969 |
| All Country Flags of the World | 0 | - | 5.00 | 3,595,407 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,562 |
| Countries that Start with B | 0 | - | 4.95 | 2,278,301 |
| Countries that Start with A | 0 | - | 4.98 | 2,144,998 |
| Countries of Africa | 0 | - | 5.00 | 2,505,003 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,438,378 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,312 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,459 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,024 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,023 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,413 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,756 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,359 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,646 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,682 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,449 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,490 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,716 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,532 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,378 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,781 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,538 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,736 |
| Countries that Start with N | 0 | - | 4.93 | 1,108,961 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,502 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,087 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,594 |
| Random Country to Capital | 0 | - | 4.98 | 910,680 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,566 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,315 |
| Asia Map Quiz | 0 | - | 4.99 | 906,033 |
| Countries that Start with U | 0 | - | 4.97 | 899,368 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,929 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,617 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,193 |
| Counties of England | 0 | - | 4.97 | 788,455 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,452 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,578 |
| Top World Languages | 0 | - | 4.92 | 812,149 |
| Countries of South America | 0 | - | 5.00 | 913,611 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,509 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,966 |
| Countries that Start with K | 0 | - | 4.96 | 808,729 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,944 |
| US States with an Empty Map | 0 | - | 5.00 | 618,254 |
| Countries that Start with V | 0 | - | 4.98 | 604,630 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,307 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,037 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,661 |
| Countries that Start with D | 0 | - | 4.96 | 700,673 |
| Countries That Border Russia | 0 | - | 4.98 | 458,597 |
| One Border Countries | 0 | - | 4.98 | 463,680 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,391 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,886 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,069 |
| Countries with Four Letters | 0 | - | 4.99 | 418,113 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,212 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,500 |
| Countries Bordering France | 0 | - | 4.85 | 397,106 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,223 |
| Northernmost Countries | 0 | - | 4.99 | 357,331 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,097 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,874 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,751 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,086 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,963 |
| Landlocked Countries | 0 | - | 4.99 | 412,983 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,910 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,087 |
| Australia Map Quiz | 0 | - | 4.94 | 342,267 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,529 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,297 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,077 |
| Countries that Start with H | 0 | - | 4.96 | 597,206 |
| Countries that Start with J | 0 | - | 4.98 | 595,286 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,018 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,536 |
| "Land" Countries | 0 | - | 4.98 | 333,458 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,271 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,599 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,382 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 293,965 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,173 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,360 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,589 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,101 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,782 |
| Countries with Z | 0 | - | 4.98 | 287,583 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,924 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,734 |
| Flags of North and South America | 0 | - | 4.99 | 365,823 |
| EU Countries Quiz | 0 | - | 4.99 | 269,515 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,006 |
| Countries that Border China | 0 | - | 4.96 | 261,713 |
| French-Speaking Countries | 0 | - | 4.85 | 268,644 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,520 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,094 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,570 |
| Every Country Shape | 0 | - | 5.00 | 458,113 |
| Europe Capital to Country | 0 | - | 4.99 | 247,323 |
| Longest International Borders | 0 | - | 4.99 | 263,397 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,772 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,717 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,163 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,467 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,687 |
| Megacities on a World Map | 0 | - | 4.98 | 250,492 |
| World Currency Quiz | 0 | - | 4.92 | 297,904 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,189 |
| NATO Countries | 0 | - | 4.98 | 275,214 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,817 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,874 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 223,915 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,294 |
| Official Cities in the UK | 0 | - | 4.89 | 280,225 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,909 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,121 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,155 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,261 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,331 |
| Countries with Megacities | 0 | - | 4.99 | 246,276 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,639 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,741 |
| World Capitals by Map | 0 | - | 5.00 | 282,885 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,841 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,267 |
| World's Busiest Airports | 0 | - | 4.94 | 210,103 |
| Country Chain | 0 | - | 4.96 | 215,590 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,248 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,448 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,504 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,798 |
| Independence from Whom | 0 | - | 4.99 | 209,513 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,360 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,531 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,408 |
| Countries with Six Letters | 0 | - | 4.93 | 210,214 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,488 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,417 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,186 |
| Flags of Oceania | 0 | - | 5.00 | 254,723 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,305 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,161 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,897 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,257 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 210,757 |
| Countries in their Native Language | 0 | - | 4.99 | 196,499 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,189 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,095 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,311 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,201 |
| Monarchies of the World | 0 | - | 4.94 | 166,414 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,445 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,596 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,272 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,825 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,010 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,038 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,806 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,577 |
| Countries That End in Y | 0 | - | 4.90 | 185,161 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,117 |
| Olympic Host Countries | 0 | - | 4.98 | 198,777 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,543 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,852 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,018 |
| Every European Country Shape | 0 | - | 4.95 | 199,859 |
| Countries of the Middle East | 0 | - | 4.96 | 198,733 |
| Countries by Official Language | 0 | - | 4.95 | 192,612 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,131 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 198,970 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,649 |
| Counties of Ireland | 0 | - | 4.92 | 192,835 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,324 |
| Countries Bordering India | 0 | - | 4.98 | 162,546 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,594 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,458 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,564 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,558 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,380 |
| European Cities by Clue | 0 | - | 4.70 | 88,772 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,926 |
| Islands by Country #2 | 0 | - | 4.80 | 76,943 |
