| Island Countries | 0 | - | 4.99 | 711,108 |
| Countries by Three Words #1 | 0 | - | 4.95 | 265,903 |
| European Countries by Clue | 0 | - | 4.92 | 183,825 |
| Countries by Military Spending | 0 | - | 4.93 | 178,377 |
| Countries by Three Words #2 | 0 | - | 4.97 | 203,243 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,596,395 |
| US States Quiz | 0 | - | 5.00 | 16,918,667 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,633,043 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,629 |
| World Capitals Quiz | 0 | - | 5.00 | 5,084,179 |
| Europe Map Quiz | 0 | - | 5.00 | 4,771,307 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,835,365 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,113 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,540,122 |
| Random Capital to Country | 0 | - | 4.99 | 2,594,764 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,780,026 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,842 |
| All Country Flags of the World | 0 | - | 5.00 | 3,680,503 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,105,605 |
| Countries that Start with B | 0 | - | 4.95 | 2,298,164 |
| Countries that Start with A | 0 | - | 4.98 | 2,166,762 |
| Countries of Africa | 0 | - | 5.00 | 2,545,082 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,745 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,692,904 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,809 |
| Countries that Start with C | 0 | - | 4.96 | 1,825,086 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,384,865 |
| Countries that Start with S | 0 | - | 4.98 | 1,757,616 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,449 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,590,926 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,877,877 |
| Countries that Start with G | 0 | - | 4.97 | 1,505,993 |
| Countries that Start with M | 0 | - | 4.97 | 1,383,841 |
| Countries that Start with E | 0 | - | 4.95 | 1,379,726 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,764 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,963 |
| Countries that Start with I | 0 | - | 4.92 | 1,290,311 |
| Countries that Start with P | 0 | - | 4.94 | 1,218,100 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,099 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,336 |
| Countries that Start with N | 0 | - | 4.93 | 1,119,699 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,248,644 |
| Countries that Start with L | 0 | - | 4.98 | 1,092,652 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 908,079 |
| Random Country to Capital | 0 | - | 4.98 | 922,852 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,312 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,176 |
| Asia Map Quiz | 0 | - | 4.99 | 919,726 |
| Countries that Start with U | 0 | - | 4.97 | 905,684 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,293 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,025,868 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,426 |
| Counties of England | 0 | - | 4.97 | 798,908 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,721 |
| Oceania Map Quiz | 0 | - | 4.98 | 652,370 |
| Top World Languages | 0 | - | 4.92 | 824,506 |
| Countries of South America | 0 | - | 5.00 | 927,601 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,747 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,784 |
| Countries that Start with K | 0 | - | 4.97 | 817,424 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,170 |
| US States with an Empty Map | 0 | - | 5.00 | 626,027 |
| Countries that Start with V | 0 | - | 4.98 | 610,165 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,885 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,400 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,902 |
| Countries that Start with D | 0 | - | 4.96 | 711,817 |
| Countries That Border Russia | 0 | - | 4.98 | 462,839 |
| One Border Countries | 0 | - | 4.98 | 469,960 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,399 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,587 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,428 |
| Countries with Four Letters | 0 | - | 4.99 | 423,361 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,136 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,564 |
| Countries Bordering France | 0 | - | 4.83 | 403,565 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,034 |
| Northernmost Countries | 0 | - | 4.99 | 362,037 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,047 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,552 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,689 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,814 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,157 |
| Landlocked Countries | 0 | - | 4.99 | 422,145 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,062 |
| World Map without 12 Countries | 0 | - | 4.97 | 345,011 |
| Australia Map Quiz | 0 | - | 4.95 | 345,164 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,793 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,771 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,598 |
| Countries that Start with H | 0 | - | 4.96 | 606,290 |
| Countries that Start with J | 0 | - | 4.98 | 603,887 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,155 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,958 |
| "Land" Countries | 0 | - | 4.98 | 337,393 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,315 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 291,433 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,689 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,450 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,107 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,217 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,232 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,690 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,623 |
| Countries with Z | 0 | - | 4.98 | 291,487 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,418 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,226 |
| Flags of North and South America | 0 | - | 4.99 | 374,345 |
| EU Countries Quiz | 0 | - | 4.99 | 275,596 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,030 |
| Countries that Border China | 0 | - | 4.96 | 263,559 |
| French-Speaking Countries | 0 | - | 4.85 | 270,884 |
| Countries with Five Letters | 0 | - | 4.96 | 282,525 |
| United States Cities Map Quiz | 0 | - | 4.96 | 214,482 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,382 |
| Every Country Shape | 0 | - | 5.00 | 467,502 |
| Europe Capital to Country | 0 | - | 4.99 | 250,887 |
| Longest International Borders | 0 | - | 4.99 | 265,223 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,544 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,989 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,712 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,844 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,297 |
| Megacities on a World Map | 0 | - | 4.98 | 255,361 |
| World Currency Quiz | 0 | - | 4.92 | 304,230 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,122 |
| NATO Countries | 0 | - | 4.98 | 281,592 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,128 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,810 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,021 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,313 |
| Official Cities in the UK | 0 | - | 4.89 | 284,519 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,505 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,138 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,366 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,377 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,246 |
| Countries with Megacities | 0 | - | 4.99 | 264,654 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,766 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,345 |
| World Capitals by Map | 0 | - | 5.00 | 287,476 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,910 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,454 |
| World's Busiest Airports | 0 | - | 4.96 | 234,988 |
| Country Chain | 0 | - | 4.96 | 217,411 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,869 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,866 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,361 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,062 |
| Independence from Whom | 0 | - | 4.99 | 212,146 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,762 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,215 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,655 |
| Countries with Six Letters | 0 | - | 4.94 | 213,581 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,919 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,399 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,038 |
| Flags of Oceania | 0 | - | 5.00 | 260,538 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,830 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,714 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,852 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,602 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,825 |
| Countries in their Native Language | 0 | - | 4.99 | 199,077 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,358 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 173,806 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,541 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,932 |
| Monarchies of the World | 0 | - | 4.94 | 169,254 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,718 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,785 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,979 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,555 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,641 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,952 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,121 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,590 |
| Countries That End in Y | 0 | - | 4.91 | 185,878 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,811 |
| Olympic Host Countries | 0 | - | 4.98 | 201,121 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,247 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,647 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,207 |
| Every European Country Shape | 0 | - | 4.96 | 202,210 |
| Countries of the Middle East | 0 | - | 4.96 | 201,695 |
| Countries by Official Language | 0 | - | 4.95 | 195,286 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,140 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,668 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,783 |
| Counties of Ireland | 0 | - | 4.92 | 196,061 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,179 |
| Countries Bordering India | 0 | - | 4.98 | 163,562 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,760 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,973 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,160 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,693 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,245 |
| European Cities by Clue | 0 | - | 4.70 | 89,094 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,258 |
| Islands by Country #2 | 0 | - | 4.80 | 77,554 |
