| Island Countries | 0 | - | 4.99 | 708,027 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,456 |
| European Countries by Clue | 0 | - | 4.92 | 182,480 |
| Countries by Military Spending | 0 | - | 4.93 | 176,574 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,949 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,003,399 |
| US States Quiz | 0 | - | 5.00 | 16,727,984 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,593,142 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,121 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,683 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,197 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,805,137 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,194 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,528,061 |
| Random Capital to Country | 0 | - | 4.99 | 2,580,026 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,158 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,293 |
| All Country Flags of the World | 0 | - | 5.00 | 3,611,882 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,090,170 |
| Countries that Start with B | 0 | - | 4.95 | 2,282,030 |
| Countries that Start with A | 0 | - | 4.98 | 2,149,334 |
| Countries of Africa | 0 | - | 5.00 | 2,512,360 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,051 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,679,443 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,255 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,100 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,978 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,130 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,848 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,458 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,917 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,365 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,610 |
| Countries that Start with E | 0 | - | 4.95 | 1,368,976 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,176 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,134 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,463 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,638 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,858 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,230 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,925 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,391 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,030 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,695 |
| Random Country to Capital | 0 | - | 4.98 | 912,835 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,044 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,420 |
| Asia Map Quiz | 0 | - | 4.99 | 908,258 |
| Countries that Start with U | 0 | - | 4.97 | 900,611 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,671 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,013,749 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,247 |
| Counties of England | 0 | - | 4.97 | 790,324 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,641 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,352 |
| Top World Languages | 0 | - | 4.92 | 814,510 |
| Countries of South America | 0 | - | 5.00 | 916,651 |
| Africa Capitals Quiz | 0 | - | 4.99 | 731,546 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,083 |
| Countries that Start with K | 0 | - | 4.97 | 810,314 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,580 |
| US States with an Empty Map | 0 | - | 5.00 | 619,683 |
| Countries that Start with V | 0 | - | 4.98 | 605,715 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,655 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,457 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,759 |
| Countries that Start with D | 0 | - | 4.96 | 702,763 |
| Countries That Border Russia | 0 | - | 4.98 | 459,540 |
| One Border Countries | 0 | - | 4.98 | 465,116 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,151 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,887 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,371 |
| Countries with Four Letters | 0 | - | 4.99 | 419,130 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,239 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,218 |
| Countries Bordering France | 0 | - | 4.83 | 400,218 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,074 |
| Northernmost Countries | 0 | - | 4.99 | 358,293 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,644 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,500 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,391 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,529 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,300 |
| Landlocked Countries | 0 | - | 4.99 | 414,634 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,668 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,702 |
| Australia Map Quiz | 0 | - | 4.94 | 342,767 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,210 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,265 |
| Majority Muslim Countries | 0 | - | 4.98 | 369,898 |
| Countries that Start with H | 0 | - | 4.96 | 598,928 |
| Countries that Start with J | 0 | - | 4.98 | 596,984 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,883 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,205 |
| "Land" Countries | 0 | - | 4.98 | 333,922 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,595 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,839 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,624 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,728 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,862 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,487 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,215 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,551 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,545 |
| Countries with Z | 0 | - | 4.98 | 288,097 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,437 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,341 |
| Flags of North and South America | 0 | - | 4.99 | 368,367 |
| EU Countries Quiz | 0 | - | 4.99 | 270,535 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,670 |
| Countries that Border China | 0 | - | 4.96 | 262,021 |
| French-Speaking Countries | 0 | - | 4.85 | 269,099 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,906 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,362 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,427 |
| Every Country Shape | 0 | - | 5.00 | 459,987 |
| Europe Capital to Country | 0 | - | 4.99 | 248,266 |
| Longest International Borders | 0 | - | 4.99 | 263,984 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,012 |
| Biggest Cities by Language | 0 | - | 4.96 | 241,556 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,226 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,913 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,008 |
| Megacities on a World Map | 0 | - | 4.98 | 251,442 |
| World Currency Quiz | 0 | - | 4.92 | 299,195 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,615 |
| NATO Countries | 0 | - | 4.98 | 276,762 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,041 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,466 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,503 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,691 |
| Official Cities in the UK | 0 | - | 4.89 | 281,053 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,391 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,358 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,837 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,611 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,655 |
| Countries with Megacities | 0 | - | 4.99 | 247,777 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,016 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,235 |
| World Capitals by Map | 0 | - | 5.00 | 283,945 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,038 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,924 |
| World's Busiest Airports | 0 | - | 4.94 | 213,029 |
| Country Chain | 0 | - | 4.96 | 215,942 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,640 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,437 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,825 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,172 |
| Independence from Whom | 0 | - | 4.99 | 209,959 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,746 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,787 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,722 |
| Countries with Six Letters | 0 | - | 4.93 | 210,571 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,711 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,581 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,708 |
| Flags of Oceania | 0 | - | 5.00 | 255,869 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,747 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,237 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,075 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,487 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,784 |
| Countries in their Native Language | 0 | - | 4.99 | 196,845 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,512 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,581 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,519 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,531 |
| Monarchies of the World | 0 | - | 4.94 | 166,908 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,685 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,000 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,589 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,188 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,556 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,165 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,077 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,390 |
| Countries That End in Y | 0 | - | 4.90 | 185,260 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,495 |
| Olympic Host Countries | 0 | - | 4.98 | 199,074 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,107 |
| Regions of Countries #1 | 0 | - | 4.97 | 159,005 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,278 |
| Every European Country Shape | 0 | - | 4.96 | 200,414 |
| Countries of the Middle East | 0 | - | 4.96 | 199,239 |
| Countries by Official Language | 0 | - | 4.95 | 192,986 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,331 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,507 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,849 |
| Counties of Ireland | 0 | - | 4.92 | 193,404 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,593 |
| Countries Bordering India | 0 | - | 4.98 | 162,704 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,745 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,557 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,791 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,716 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,482 |
| European Cities by Clue | 0 | - | 4.70 | 88,852 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,990 |
| Islands by Country #2 | 0 | - | 4.80 | 77,062 |
