| Island Countries | 0 | - | 4.99 | 708,848 |
| Countries by Three Words #1 | 0 | - | 4.95 | 264,624 |
| European Countries by Clue | 0 | - | 4.92 | 183,270 |
| Countries by Military Spending | 0 | - | 4.93 | 176,982 |
| Countries by Three Words #2 | 0 | - | 4.97 | 201,054 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,170,001 |
| US States Quiz | 0 | - | 5.00 | 16,781,107 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,604,623 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,632 |
| World Capitals Quiz | 0 | - | 5.00 | 5,051,123 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,277 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,813,901 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,637 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,328 |
| Random Capital to Country | 0 | - | 4.99 | 2,584,382 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,741,107 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,793 |
| All Country Flags of the World | 0 | - | 5.00 | 3,630,845 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,439 |
| Countries that Start with B | 0 | - | 4.95 | 2,286,344 |
| Countries that Start with A | 0 | - | 4.98 | 2,154,106 |
| Countries of Africa | 0 | - | 5.00 | 2,521,692 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,965 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,683,130 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,623 |
| Countries that Start with C | 0 | - | 4.96 | 1,815,532 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,175 |
| Countries that Start with S | 0 | - | 4.98 | 1,749,133 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,067 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,578,029 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,009 |
| Countries that Start with G | 0 | - | 4.97 | 1,497,326 |
| Countries that Start with M | 0 | - | 4.97 | 1,377,049 |
| Countries that Start with E | 0 | - | 4.95 | 1,371,808 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,564 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,764 |
| Countries that Start with I | 0 | - | 4.92 | 1,283,759 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,052 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,437 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,826 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,211 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,805 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,235 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 905,574 |
| Random Country to Capital | 0 | - | 4.98 | 915,104 |
| Countries that Start with T | 0 | - | 4.90 | 1,006,751 |
| Biggest Cities in the United States | 0 | - | 4.93 | 972,039 |
| Asia Map Quiz | 0 | - | 4.99 | 911,048 |
| Countries that Start with U | 0 | - | 4.97 | 901,970 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,867 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,017,366 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,488 |
| Counties of England | 0 | - | 4.97 | 792,646 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,876 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,654 |
| Top World Languages | 0 | - | 4.92 | 817,447 |
| Countries of South America | 0 | - | 5.00 | 919,787 |
| Africa Capitals Quiz | 0 | - | 4.99 | 733,749 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,119 |
| Countries that Start with K | 0 | - | 4.97 | 812,107 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,307 |
| US States with an Empty Map | 0 | - | 5.00 | 621,432 |
| Countries that Start with V | 0 | - | 4.98 | 607,166 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 504,108 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,906 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,192 |
| Countries that Start with D | 0 | - | 4.96 | 705,108 |
| Countries That Border Russia | 0 | - | 4.98 | 460,363 |
| One Border Countries | 0 | - | 4.98 | 466,439 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,759 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,248 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,843 |
| Countries with Four Letters | 0 | - | 4.99 | 420,371 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,082 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,112 |
| Countries Bordering France | 0 | - | 4.83 | 401,149 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,877 |
| Northernmost Countries | 0 | - | 4.99 | 359,415 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,242 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,859 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,019 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,144 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,671 |
| Landlocked Countries | 0 | - | 4.99 | 416,737 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,581 |
| World Map without 12 Countries | 0 | - | 4.97 | 343,357 |
| Australia Map Quiz | 0 | - | 4.94 | 343,293 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,861 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,411 |
| Majority Muslim Countries | 0 | - | 4.98 | 371,914 |
| Countries that Start with H | 0 | - | 4.96 | 600,931 |
| Countries that Start with J | 0 | - | 4.98 | 598,919 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,755 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,979 |
| "Land" Countries | 0 | - | 4.98 | 334,634 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,941 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 288,497 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,887 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,187 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,503 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,996 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,362 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,884 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 268,587 |
| Countries with Z | 0 | - | 4.98 | 288,793 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,624 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,921 |
| Flags of North and South America | 0 | - | 4.99 | 370,218 |
| EU Countries Quiz | 0 | - | 4.99 | 271,669 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,353 |
| Countries that Border China | 0 | - | 4.96 | 262,509 |
| French-Speaking Countries | 0 | - | 4.85 | 269,765 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,602 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,644 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,418 |
| Every Country Shape | 0 | - | 5.00 | 461,840 |
| Europe Capital to Country | 0 | - | 4.99 | 248,941 |
| Longest International Borders | 0 | - | 4.99 | 264,310 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,439 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,457 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,930 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,639 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,322 |
| Megacities on a World Map | 0 | - | 4.98 | 252,369 |
| World Currency Quiz | 0 | - | 4.92 | 300,587 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,069 |
| NATO Countries | 0 | - | 4.98 | 278,143 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,285 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,097 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,892 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,197 |
| Official Cities in the UK | 0 | - | 4.89 | 282,173 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,953 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,573 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,241 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,291 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,998 |
| Countries with Megacities | 0 | - | 4.99 | 249,008 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,604 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,777 |
| World Capitals by Map | 0 | - | 5.00 | 284,831 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,283 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,259 |
| World's Busiest Airports | 0 | - | 4.96 | 229,034 |
| Country Chain | 0 | - | 4.96 | 216,428 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,299 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,276 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,244 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,488 |
| Independence from Whom | 0 | - | 4.99 | 210,827 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,334 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,047 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,064 |
| Countries with Six Letters | 0 | - | 4.93 | 211,151 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,999 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,763 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,271 |
| Flags of Oceania | 0 | - | 5.00 | 257,028 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,255 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,715 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,285 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,739 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,910 |
| Countries in their Native Language | 0 | - | 4.99 | 197,645 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,915 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,395 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,709 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,844 |
| Monarchies of the World | 0 | - | 4.94 | 167,440 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,047 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,356 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,028 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,424 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,095 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,382 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,355 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,266 |
| Countries That End in Y | 0 | - | 4.90 | 185,431 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,095 |
| Olympic Host Countries | 0 | - | 4.98 | 199,538 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,726 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,185 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,522 |
| Every European Country Shape | 0 | - | 4.96 | 200,840 |
| Countries of the Middle East | 0 | - | 4.96 | 199,872 |
| Countries by Official Language | 0 | - | 4.95 | 194,027 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,554 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,813 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,024 |
| Counties of Ireland | 0 | - | 4.92 | 194,056 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,916 |
| Countries Bordering India | 0 | - | 4.98 | 163,201 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,940 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,647 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,452 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,886 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,633 |
| European Cities by Clue | 0 | - | 4.70 | 88,952 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,069 |
| Islands by Country #2 | 0 | - | 4.80 | 77,196 |
