| Island Countries | 0 | - | 4.99 | 712,599 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,638 |
| European Countries by Clue | 0 | - | 4.92 | 184,170 |
| Countries by Military Spending | 0 | - | 4.93 | 179,016 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,713 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,886,284 |
| US States Quiz | 0 | - | 5.00 | 16,997,990 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,653,527 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,453 |
| World Capitals Quiz | 0 | - | 5.00 | 5,106,614 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,520 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,849,180 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,929 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,123 |
| Random Capital to Country | 0 | - | 4.99 | 2,601,694 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,804,991 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,813 |
| All Country Flags of the World | 0 | - | 5.00 | 3,714,627 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,124,664 |
| Countries that Start with B | 0 | - | 4.95 | 2,306,594 |
| Countries that Start with A | 0 | - | 4.98 | 2,175,862 |
| Countries of Africa | 0 | - | 5.00 | 2,560,122 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,569 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,895 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,787 |
| Countries that Start with C | 0 | - | 4.96 | 1,831,551 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,342 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,235 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,266 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,724 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,889,586 |
| Countries that Start with G | 0 | - | 4.97 | 1,511,606 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,338 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,167 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,725 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,047 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,638 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,082 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,848 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,260 |
| Countries that Start with N | 0 | - | 4.93 | 1,123,939 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,262 |
| Countries that Start with L | 0 | - | 4.98 | 1,096,885 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,784 |
| Random Country to Capital | 0 | - | 4.98 | 928,241 |
| Countries that Start with T | 0 | - | 4.90 | 1,014,973 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,185 |
| Asia Map Quiz | 0 | - | 4.99 | 925,273 |
| Countries that Start with U | 0 | - | 4.97 | 908,517 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,510 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,624 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,493 |
| Counties of England | 0 | - | 4.97 | 803,000 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,651 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,456 |
| Top World Languages | 0 | - | 4.92 | 829,882 |
| Countries of South America | 0 | - | 5.00 | 932,811 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,950 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,930 |
| Countries that Start with K | 0 | - | 4.97 | 820,815 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,475 |
| US States with an Empty Map | 0 | - | 5.00 | 628,756 |
| Countries that Start with V | 0 | - | 4.98 | 612,034 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,195 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,138 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,429 |
| Countries that Start with D | 0 | - | 4.96 | 716,488 |
| Countries That Border Russia | 0 | - | 4.98 | 464,525 |
| One Border Countries | 0 | - | 4.98 | 471,996 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,535 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,012 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,748 |
| Countries with Four Letters | 0 | - | 4.99 | 425,883 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,621 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,583 |
| Countries Bordering France | 0 | - | 4.83 | 404,936 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,532 |
| Northernmost Countries | 0 | - | 4.99 | 364,063 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,255 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,714 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,878 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,688 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,035 |
| Landlocked Countries | 0 | - | 4.99 | 425,971 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,913 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,136 |
| Australia Map Quiz | 0 | - | 4.95 | 346,179 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,067 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,662 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,762 |
| Countries that Start with H | 0 | - | 4.96 | 609,636 |
| Countries that Start with J | 0 | - | 4.98 | 607,027 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,907 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 336,956 |
| "Land" Countries | 0 | - | 4.98 | 338,413 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,019 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,245 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,284 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,439 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,043 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,672 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,766 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,356 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,899 |
| Countries with Z | 0 | - | 4.98 | 292,482 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,657 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,060 |
| Flags of North and South America | 0 | - | 4.99 | 377,076 |
| EU Countries Quiz | 0 | - | 4.99 | 277,977 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,252 |
| Countries that Border China | 0 | - | 4.96 | 264,296 |
| French-Speaking Countries | 0 | - | 4.85 | 271,695 |
| Countries with Five Letters | 0 | - | 4.96 | 283,803 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,196 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,430 |
| Every Country Shape | 0 | - | 5.00 | 471,269 |
| Europe Capital to Country | 0 | - | 4.99 | 252,120 |
| Longest International Borders | 0 | - | 4.99 | 265,823 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,031 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,679 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,490 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,645 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,137 |
| Megacities on a World Map | 0 | - | 4.98 | 256,973 |
| World Currency Quiz | 0 | - | 4.92 | 306,815 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,278 |
| NATO Countries | 0 | - | 4.98 | 283,488 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,589 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,966 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,828 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,373 |
| Official Cities in the UK | 0 | - | 4.89 | 286,297 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,503 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,580 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,136 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,152 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,826 |
| Countries with Megacities | 0 | - | 4.99 | 267,170 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,642 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,475 |
| World Capitals by Map | 0 | - | 5.00 | 289,416 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,324 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,994 |
| World's Busiest Airports | 0 | - | 4.96 | 237,352 |
| Country Chain | 0 | - | 4.96 | 218,474 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 280,919 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,770 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,381 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,703 |
| Independence from Whom | 0 | - | 4.99 | 213,090 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,461 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,873 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,035 |
| Countries with Six Letters | 0 | - | 4.94 | 214,505 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,253 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,718 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,114 |
| Flags of Oceania | 0 | - | 5.00 | 262,745 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,803 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,360 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,208 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,497 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,074 |
| Countries in their Native Language | 0 | - | 4.99 | 199,752 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,391 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,696 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,931 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,479 |
| Monarchies of the World | 0 | - | 4.94 | 170,233 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,298 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,986 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,653 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,996 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,608 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,235 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,020 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,260 |
| Countries That End in Y | 0 | - | 4.91 | 186,095 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,722 |
| Olympic Host Countries | 0 | - | 4.98 | 201,978 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,603 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,236 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,675 |
| Every European Country Shape | 0 | - | 4.96 | 203,009 |
| Countries of the Middle East | 0 | - | 4.96 | 202,968 |
| Countries by Official Language | 0 | - | 4.95 | 196,014 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,824 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,152 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,123 |
| Counties of Ireland | 0 | - | 4.92 | 197,332 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,755 |
| Countries Bordering India | 0 | - | 4.98 | 163,821 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,272 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,151 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,228 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,990 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,687 |
| European Cities by Clue | 0 | - | 4.70 | 89,177 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,418 |
| Islands by Country #2 | 0 | - | 4.80 | 77,877 |
