| Island Countries | 0 | - | 4.99 | 709,024 |
| Countries by Three Words #1 | 0 | - | 4.95 | 264,716 |
| European Countries by Clue | 0 | - | 4.92 | 183,311 |
| Countries by Military Spending | 0 | - | 4.93 | 177,049 |
| Countries by Three Words #2 | 0 | - | 4.97 | 201,208 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,200,160 |
| US States Quiz | 0 | - | 5.00 | 16,791,506 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,606,416 |
| United States Map Quiz | 0 | - | 4.98 | 4,149,459 |
| World Capitals Quiz | 0 | - | 5.00 | 5,053,316 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,209 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,815,534 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,632 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,926 |
| Random Capital to Country | 0 | - | 4.99 | 2,585,019 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,744,122 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,553 |
| All Country Flags of the World | 0 | - | 5.00 | 3,634,175 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,095,138 |
| Countries that Start with B | 0 | - | 4.95 | 2,287,228 |
| Countries that Start with A | 0 | - | 4.98 | 2,155,072 |
| Countries of Africa | 0 | - | 5.00 | 2,523,302 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,464 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,683,791 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,299 |
| Countries that Start with C | 0 | - | 4.96 | 1,816,228 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,547 |
| Countries that Start with S | 0 | - | 4.98 | 1,749,750 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,657 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,579,005 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,330 |
| Countries that Start with G | 0 | - | 4.97 | 1,497,912 |
| Countries that Start with M | 0 | - | 4.97 | 1,377,535 |
| Countries that Start with E | 0 | - | 4.95 | 1,372,398 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,012 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,010 |
| Countries that Start with I | 0 | - | 4.92 | 1,284,185 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,454 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,904 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,090,117 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,664 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,235,869 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,650 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 905,727 |
| Random Country to Capital | 0 | - | 4.98 | 915,646 |
| Countries that Start with T | 0 | - | 4.90 | 1,007,068 |
| Biggest Cities in the United States | 0 | - | 4.93 | 972,761 |
| Asia Map Quiz | 0 | - | 4.99 | 911,641 |
| Countries that Start with U | 0 | - | 4.97 | 902,242 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,825 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,055 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 731,677 |
| Counties of England | 0 | - | 4.97 | 793,073 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,102 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,984 |
| Top World Languages | 0 | - | 4.92 | 818,022 |
| Countries of South America | 0 | - | 5.00 | 920,338 |
| Africa Capitals Quiz | 0 | - | 4.99 | 734,103 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,580 |
| Countries that Start with K | 0 | - | 4.97 | 812,450 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,509 |
| US States with an Empty Map | 0 | - | 5.00 | 621,726 |
| Countries that Start with V | 0 | - | 4.98 | 607,400 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 504,398 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,002 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,571 |
| Countries that Start with D | 0 | - | 4.96 | 705,588 |
| Countries That Border Russia | 0 | - | 4.98 | 460,512 |
| One Border Countries | 0 | - | 4.98 | 466,702 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,861 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,498 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,113 |
| Countries with Four Letters | 0 | - | 4.99 | 420,626 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,255 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,279 |
| Countries Bordering France | 0 | - | 4.83 | 401,314 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,038 |
| Northernmost Countries | 0 | - | 4.99 | 359,627 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,393 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,028 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,136 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,232 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,745 |
| Landlocked Countries | 0 | - | 4.99 | 417,121 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,746 |
| World Map without 12 Countries | 0 | - | 4.97 | 343,482 |
| Australia Map Quiz | 0 | - | 4.94 | 343,408 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,985 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,613 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,188 |
| Countries that Start with H | 0 | - | 4.96 | 601,323 |
| Countries that Start with J | 0 | - | 4.98 | 599,299 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,936 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,103 |
| "Land" Countries | 0 | - | 4.98 | 334,972 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,001 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 288,824 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,167 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,263 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,831 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,396 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,484 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,941 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 268,975 |
| Countries with Z | 0 | - | 4.98 | 289,077 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,975 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,013 |
| Flags of North and South America | 0 | - | 4.99 | 370,616 |
| EU Countries Quiz | 0 | - | 4.99 | 271,952 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,484 |
| Countries that Border China | 0 | - | 4.96 | 262,591 |
| French-Speaking Countries | 0 | - | 4.85 | 269,874 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 267,514 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,731 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,614 |
| Every Country Shape | 0 | - | 5.00 | 462,228 |
| Europe Capital to Country | 0 | - | 4.99 | 249,052 |
| Longest International Borders | 0 | - | 4.99 | 264,375 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,717 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,613 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,366 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,722 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,409 |
| Megacities on a World Map | 0 | - | 4.98 | 252,512 |
| World Currency Quiz | 0 | - | 4.92 | 300,858 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,141 |
| NATO Countries | 0 | - | 4.98 | 278,382 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,326 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,249 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,959 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,607 |
| Official Cities in the UK | 0 | - | 4.89 | 282,351 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,080 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,626 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,314 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,393 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,112 |
| Countries with Megacities | 0 | - | 4.99 | 249,332 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,677 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,891 |
| World Capitals by Map | 0 | - | 5.00 | 284,970 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,326 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,329 |
| World's Busiest Airports | 0 | - | 4.96 | 230,232 |
| Country Chain | 0 | - | 4.96 | 216,505 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,395 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,442 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,327 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,563 |
| Independence from Whom | 0 | - | 4.99 | 210,928 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,408 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,113 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,097 |
| Countries with Six Letters | 0 | - | 4.93 | 211,542 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,374 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,803 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,492 |
| Flags of Oceania | 0 | - | 5.00 | 257,256 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,338 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,796 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,322 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,799 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,149 |
| Countries in their Native Language | 0 | - | 4.99 | 197,779 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,211 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,476 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,733 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,933 |
| Monarchies of the World | 0 | - | 4.94 | 167,542 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,224 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,436 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,093 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,480 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,201 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,406 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,409 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,431 |
| Countries That End in Y | 0 | - | 4.90 | 185,483 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,194 |
| Olympic Host Countries | 0 | - | 4.98 | 199,742 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,828 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,209 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,570 |
| Every European Country Shape | 0 | - | 4.96 | 200,943 |
| Countries of the Middle East | 0 | - | 4.96 | 199,988 |
| Countries by Official Language | 0 | - | 4.95 | 194,174 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,599 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,870 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,060 |
| Counties of Ireland | 0 | - | 4.92 | 194,169 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,972 |
| Countries Bordering India | 0 | - | 4.98 | 163,227 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,976 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,672 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,502 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,922 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,654 |
| European Cities by Clue | 0 | - | 4.70 | 88,965 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,079 |
| Islands by Country #2 | 0 | - | 4.80 | 77,230 |
