| Island Countries | 0 | - | 4.99 | 709,097 |
| Countries by Three Words #1 | 0 | - | 4.95 | 264,760 |
| European Countries by Clue | 0 | - | 4.92 | 183,328 |
| Countries by Military Spending | 0 | - | 4.93 | 177,087 |
| Countries by Three Words #2 | 0 | - | 4.97 | 201,276 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,212,939 |
| US States Quiz | 0 | - | 5.00 | 16,795,856 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,607,196 |
| United States Map Quiz | 0 | - | 4.98 | 4,149,755 |
| World Capitals Quiz | 0 | - | 5.00 | 5,054,255 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,804 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,816,182 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,049 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,532,168 |
| Random Capital to Country | 0 | - | 4.99 | 2,585,368 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,745,299 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,856 |
| All Country Flags of the World | 0 | - | 5.00 | 3,635,600 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,095,432 |
| Countries that Start with B | 0 | - | 4.95 | 2,287,556 |
| Countries that Start with A | 0 | - | 4.98 | 2,155,436 |
| Countries of Africa | 0 | - | 5.00 | 2,524,000 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,692 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,684,074 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,530 |
| Countries that Start with C | 0 | - | 4.96 | 1,816,495 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,709 |
| Countries that Start with S | 0 | - | 4.98 | 1,749,995 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,918 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,579,352 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,939 |
| Countries that Start with G | 0 | - | 4.97 | 1,498,145 |
| Countries that Start with M | 0 | - | 4.97 | 1,377,723 |
| Countries that Start with E | 0 | - | 4.95 | 1,372,621 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,257 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,076 |
| Countries that Start with I | 0 | - | 4.92 | 1,284,356 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,631 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,131 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,090,258 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,850 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,236,378 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,823 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 905,794 |
| Random Country to Capital | 0 | - | 4.98 | 916,009 |
| Countries that Start with T | 0 | - | 4.90 | 1,007,182 |
| Biggest Cities in the United States | 0 | - | 4.93 | 973,076 |
| Asia Map Quiz | 0 | - | 4.99 | 911,888 |
| Countries that Start with U | 0 | - | 4.97 | 902,349 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,127 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,299 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 731,761 |
| Counties of England | 0 | - | 4.97 | 793,239 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,274 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,137 |
| Top World Languages | 0 | - | 4.92 | 818,233 |
| Countries of South America | 0 | - | 5.00 | 920,537 |
| Africa Capitals Quiz | 0 | - | 4.99 | 734,244 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,722 |
| Countries that Start with K | 0 | - | 4.97 | 812,593 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,573 |
| US States with an Empty Map | 0 | - | 5.00 | 621,879 |
| Countries that Start with V | 0 | - | 4.98 | 607,496 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 504,513 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,042 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,771 |
| Countries that Start with D | 0 | - | 4.96 | 705,765 |
| Countries That Border Russia | 0 | - | 4.98 | 460,570 |
| One Border Countries | 0 | - | 4.98 | 466,797 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,899 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,578 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,227 |
| Countries with Four Letters | 0 | - | 4.99 | 420,754 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,321 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,331 |
| Countries Bordering France | 0 | - | 4.83 | 401,376 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,109 |
| Northernmost Countries | 0 | - | 4.99 | 359,722 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,452 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,107 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,187 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,269 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,766 |
| Landlocked Countries | 0 | - | 4.99 | 417,272 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,811 |
| World Map without 12 Countries | 0 | - | 4.97 | 343,532 |
| Australia Map Quiz | 0 | - | 4.94 | 343,443 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,037 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,702 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,294 |
| Countries that Start with H | 0 | - | 4.96 | 601,462 |
| Countries that Start with J | 0 | - | 4.98 | 599,432 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,013 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,149 |
| "Land" Countries | 0 | - | 4.98 | 335,201 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,029 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 288,953 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,280 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,290 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,874 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,557 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,533 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,968 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 269,132 |
| Countries with Z | 0 | - | 4.98 | 289,258 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,067 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,051 |
| Flags of North and South America | 0 | - | 4.99 | 370,770 |
| EU Countries Quiz | 0 | - | 4.99 | 272,040 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,527 |
| Countries that Border China | 0 | - | 4.96 | 262,617 |
| French-Speaking Countries | 0 | - | 4.85 | 269,914 |
| Countries with Five Letters | 0 | - | 4.96 | 273,292 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,763 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,708 |
| Every Country Shape | 0 | - | 5.00 | 462,408 |
| Europe Capital to Country | 0 | - | 4.99 | 249,111 |
| Longest International Borders | 0 | - | 4.99 | 264,411 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,843 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,650 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,562 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,754 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,441 |
| Megacities on a World Map | 0 | - | 4.98 | 252,570 |
| World Currency Quiz | 0 | - | 4.92 | 300,967 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,184 |
| NATO Countries | 0 | - | 4.98 | 278,477 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,337 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,307 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,981 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,887 |
| Official Cities in the UK | 0 | - | 4.89 | 282,423 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,111 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,635 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,343 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,435 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,134 |
| Countries with Megacities | 0 | - | 4.99 | 249,427 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,705 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,943 |
| World Capitals by Map | 0 | - | 5.00 | 285,037 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,342 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,344 |
| World's Busiest Airports | 0 | - | 4.96 | 230,652 |
| Country Chain | 0 | - | 4.96 | 216,536 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,466 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,496 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,359 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,591 |
| Independence from Whom | 0 | - | 4.99 | 210,975 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,440 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,142 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,109 |
| Countries with Six Letters | 0 | - | 4.93 | 211,861 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,411 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,815 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,668 |
| Flags of Oceania | 0 | - | 5.00 | 257,352 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,381 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,826 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,332 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,830 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,247 |
| Countries in their Native Language | 0 | - | 4.99 | 197,844 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,440 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,513 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,745 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,975 |
| Monarchies of the World | 0 | - | 4.94 | 167,579 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,368 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,467 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,129 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,513 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,248 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,418 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,440 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,483 |
| Countries That End in Y | 0 | - | 4.90 | 185,521 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,244 |
| Olympic Host Countries | 0 | - | 4.98 | 199,789 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,888 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,220 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,590 |
| Every European Country Shape | 0 | - | 4.96 | 200,995 |
| Countries of the Middle East | 0 | - | 4.96 | 200,046 |
| Countries by Official Language | 0 | - | 4.95 | 194,245 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,618 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,898 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,075 |
| Counties of Ireland | 0 | - | 4.92 | 194,202 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,993 |
| Countries Bordering India | 0 | - | 4.98 | 163,234 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,989 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,685 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,515 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,938 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,661 |
| European Cities by Clue | 0 | - | 4.70 | 88,967 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,084 |
| Islands by Country #2 | 0 | - | 4.80 | 77,239 |
