| Island Countries Quiz | 0 | - | 4.99 | 686,707 |
| Countries by Three Words #1 | 0 | - | 4.94 | 249,346 |
| European Countries by Clue | 0 | - | 4.92 | 176,808 |
| Countries by Military Spending | 0 | - | 4.93 | 167,509 |
| Countries by Three Words #2 | 0 | - | 4.95 | 165,563 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,801,086 |
| US States Quiz | 0 | - | 5.00 | 15,701,839 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,347,965 |
| United States Map Quiz | 0 | - | 4.98 | 4,034,914 |
| World Capitals Quiz | 0 | - | 5.00 | 4,764,214 |
| Europe Map Quiz | 0 | - | 5.00 | 4,517,285 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,603,150 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,234,284 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,448,074 |
| Random Capital to Country | 0 | - | 4.99 | 2,477,182 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,424,117 |
| Africa Map Quiz | 0 | - | 5.00 | 2,021,936 |
| All Country Flags of the World | 0 | - | 5.00 | 3,267,144 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,007,508 |
| Countries that Start with B | 0 | - | 4.95 | 2,185,906 |
| Countries that Start with A | 0 | - | 4.98 | 2,048,020 |
| Countries of Africa | 0 | - | 5.00 | 2,329,187 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,390,778 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,604,476 |
| South America Map Quiz | 0 | - | 5.00 | 1,482,887 |
| Countries that Start with C | 0 | - | 4.96 | 1,733,582 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,333,410 |
| Countries that Start with S | 0 | - | 4.98 | 1,677,989 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,372,418 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,475,240 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,705,942 |
| Countries that Start with G | 0 | - | 4.97 | 1,425,444 |
| Countries that Start with M | 0 | - | 4.97 | 1,316,347 |
| Countries that Start with E | 0 | - | 4.95 | 1,303,337 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,257,161 |
| Central America and Caribbean Map Quiz | 0 | - | 4.88 | 879,300 |
| Countries that Start with I | 0 | - | 4.92 | 1,226,911 |
| Countries that Start with P | 0 | - | 4.95 | 1,157,404 |
| Biggest Countries by Area | 0 | - | 5.00 | 982,153 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,047,633 |
| Countries that Start with N | 0 | - | 4.93 | 1,056,856 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,121,077 |
| Countries that Start with L | 0 | - | 4.98 | 1,030,107 |
| Country Shape Quiz #1 | 0 | - | 4.92 | 877,693 |
| Random Country to Capital | 0 | - | 4.98 | 856,096 |
| Countries that Start with T | 0 | - | 4.89 | 962,979 |
| Biggest Cities in the United States | 0 | - | 4.94 | 899,689 |
| Asia Map Quiz | 0 | - | 4.99 | 845,813 |
| Countries that Start with U | 0 | - | 4.97 | 864,795 |
| Countries of Oceania | 0 | - | 5.00 | 963,378 |
| Countries of North America Quiz | 0 | - | 5.00 | 942,963 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 701,423 |
| Counties of England | 0 | - | 4.97 | 741,434 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 606,948 |
| Oceania Map Quiz | 0 | - | 4.98 | 599,799 |
| Top World Languages | 0 | - | 4.91 | 760,443 |
| Countries of South America | 0 | - | 5.00 | 852,183 |
| Africa Capitals Quiz | 0 | - | 4.99 | 683,296 |
| Asia Capitals Quiz | 0 | - | 4.97 | 642,573 |
| Countries that Start with K | 0 | - | 4.96 | 764,603 |
| UK Cities Map Quiz | 0 | - | 4.95 | 448,322 |
| US States with an Empty Map | 0 | - | 5.00 | 586,996 |
| Countries that Start with V | 0 | - | 4.98 | 578,294 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 478,527 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 401,336 |
| Flags of Asia Quiz | 0 | - | 4.99 | 561,834 |
| Countries that Start with D | 0 | - | 4.96 | 649,795 |
| Countries That Border Russia | 0 | - | 4.98 | 443,155 |
| One Border Countries | 0 | - | 4.98 | 441,933 |
| Country Shape Quiz #2 | 0 | - | 4.97 | 400,372 |
| South America Capitals Quiz | 0 | - | 5.00 | 452,299 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 378,881 |
| Countries with Four Letters | 0 | - | 4.99 | 385,434 |
| Countries with the Most Borders | 0 | - | 4.97 | 371,570 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 409,427 |
| Countries Bordering France | 0 | - | 4.87 | 372,022 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 362,584 |
| Northernmost Countries | 0 | - | 4.99 | 340,701 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 349,037 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 357,555 |
| Countries Bordering Germany | 0 | - | 4.99 | 353,937 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 353,989 |
| Counties of England Map Quiz | 0 | - | 4.97 | 296,503 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 375,874 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 406,614 |
| World Map without 12 Countries | 0 | - | 4.96 | 328,063 |
| Australia Map Quiz | 0 | - | 4.94 | 332,122 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 349,386 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 393,987 |
| Majority Muslim Countries | 0 | - | 4.98 | 327,657 |
| Countries that Start with H | 0 | - | 4.96 | 554,096 |
| Countries that Start with J | 0 | - | 4.98 | 554,708 |
| World Capitals by Proximity | 0 | - | 4.89 | 312,581 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 316,236 |
| "Land" Countries | 0 | - | 4.98 | 298,682 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 293,043 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.61 | 276,575 |
| Canada Provinces and Territories | 0 | - | 4.99 | 308,543 |
| Country Shape Quiz #3 | 0 | - | 4.91 | 278,666 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 298,207 |
| Flags of Africa Quiz | 0 | - | 5.00 | 420,482 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 297,023 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 229,500 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 248,899 |
| Countries with Z | 0 | - | 4.98 | 274,104 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 279,973 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 255,898 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 331,644 |
| EU Countries Quiz | 0 | - | 4.99 | 252,485 |
| Biggest Cities in Germany | 0 | - | 4.95 | 277,669 |
| Countries that Border China | 0 | - | 4.96 | 253,988 |
| French-Speaking Countries | 0 | - | 4.85 | 254,513 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 243,681 |
| United States Cities Map Quiz | 0 | - | 4.96 | 207,159 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 263,977 |
| Every Country Shape | 0 | - | 5.00 | 413,952 |
| Europe Capital to Country | 0 | - | 4.99 | 233,332 |
| Longest International Borders | 0 | - | 4.99 | 242,442 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 246,019 |
| Biggest Cities by Language | 0 | - | 4.95 | 222,533 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 267,334 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 232,910 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 228,165 |
| Megacities on a World Map | 0 | - | 4.98 | 231,102 |
| World Currency Quiz | 0 | - | 4.92 | 260,742 |
| Southernmost Countries of the World | 0 | - | 4.99 | 217,128 |
| NATO Countries Quiz | 0 | - | 4.98 | 255,879 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 237,590 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 201,049 |
| Country Shape Quiz #4 | 0 | - | 4.93 | 206,911 |
| Places in their Native Language #1 | 0 | - | 4.84 | 230,357 |
| Official Cities in the UK | 0 | - | 4.89 | 257,458 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 201,179 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 202,206 |
| Countries Closest to Spain | 0 | - | 4.95 | 215,847 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 218,239 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 213,427 |
| Countries with Megacities | 0 | - | 4.99 | 215,514 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 219,848 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 218,241 |
| World Capitals by Map | 0 | - | 5.00 | 262,454 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 185,051 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 214,863 |
| World's Busiest Airports | 0 | - | 4.94 | 197,491 |
| Country Chain | 0 | - | 4.96 | 206,998 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 267,697 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 247,622 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 207,122 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 187,521 |
| Independence from Whom | 0 | - | 4.99 | 197,936 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 218,012 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 177,177 |
| Countries by Borders #1 | 0 | - | 5.00 | 182,203 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 198,874 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 167,697 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 197,364 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 187,805 |
| Flags of Oceania | 0 | - | 5.00 | 233,323 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 211,116 |
| Largest Countries with No Borders | 0 | - | 4.96 | 210,058 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 175,139 |
| Countries Closest to Canada | 0 | - | 4.90 | 190,964 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 196,022 |
| Countries in their Native Language | 0 | - | 4.98 | 187,455 |
| Countries Closest to Italy | 0 | - | 4.97 | 188,142 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 160,216 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 165,722 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 188,054 |
| Monarchies of the World | 0 | - | 4.93 | 158,009 |
| Countries with Letters Missing | 0 | - | 4.97 | 175,450 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 183,822 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 182,008 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 160,657 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 213,456 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 172,886 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 183,951 |
| North America Capitals Quiz | 0 | - | 4.99 | 200,523 |
| Countries That End in Y | 0 | - | 4.91 | 181,299 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 188,774 |
| Olympic Host Countries | 0 | - | 4.98 | 187,964 |
| Countries With the Most Languages | 0 | - | 4.88 | 187,460 |
| Regions of Countries #1 | 0 | - | 4.96 | 154,747 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 158,725 |
| Every European Country Shape | 0 | - | 4.95 | 179,634 |
| Countries of the Middle East | 0 | - | 4.95 | 186,086 |
| Countries by Official Language | 0 | - | 4.95 | 182,573 |
| Countries Closest to Australia | 0 | - | 4.99 | 161,246 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 191,498 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 142,824 |
| Counties of Ireland | 0 | - | 4.88 | 173,617 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 171,677 |
| Countries Bordering India | 0 | - | 4.98 | 159,349 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 139,120 |
| Countries with the Highest HDI | 0 | - | 4.95 | 133,800 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 154,276 |
| Countries with the Most Forest | 0 | - | 4.88 | 142,134 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,275 |
| European Cities by Clue | 0 | - | 4.70 | 87,207 |
| Geography Analogies #1 | 0 | - | 4.70 | 83,523 |
| Islands by Country #2 | 0 | - | 4.78 | 74,075 |
