| Island Countries | 0 | - | 4.99 | 708,219 |
| Countries by Three Words #1 | 0 | - | 4.95 | 263,129 |
| European Countries by Clue | 0 | - | 4.92 | 182,629 |
| Countries by Military Spending | 0 | - | 4.93 | 176,669 |
| Countries by Three Words #2 | 0 | - | 4.97 | 199,573 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,035,859 |
| US States Quiz | 0 | - | 5.00 | 16,739,657 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,595,581 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,160 |
| World Capitals Quiz | 0 | - | 5.00 | 5,041,355 |
| Europe Map Quiz | 0 | - | 5.00 | 4,738,529 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,806,948 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,301 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,528,803 |
| Random Capital to Country | 0 | - | 4.99 | 2,580,963 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,728,756 |
| Africa Map Quiz | 0 | - | 5.00 | 2,107,208 |
| All Country Flags of the World | 0 | - | 5.00 | 3,615,583 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,091,323 |
| Countries that Start with B | 0 | - | 4.95 | 2,282,971 |
| Countries that Start with A | 0 | - | 4.98 | 2,150,333 |
| Countries of Africa | 0 | - | 5.00 | 2,514,156 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,501 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,680,207 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,677 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,814 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,719 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,774 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,536 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,574,344 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,402 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,994 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,124 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,553 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,694 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,303 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,954 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,090 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,406 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,573 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,419 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,230,573 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,499 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,925 |
| Random Country to Capital | 0 | - | 4.98 | 913,322 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,411 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,244 |
| Asia Map Quiz | 0 | - | 4.99 | 908,775 |
| Countries that Start with U | 0 | - | 4.97 | 900,883 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,569 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,014,583 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 730,494 |
| Counties of England | 0 | - | 4.97 | 790,822 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,876 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,823 |
| Top World Languages | 0 | - | 4.92 | 815,083 |
| Countries of South America | 0 | - | 5.00 | 917,395 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,055 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,584 |
| Countries that Start with K | 0 | - | 4.97 | 810,679 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,759 |
| US States with an Empty Map | 0 | - | 5.00 | 620,075 |
| Countries that Start with V | 0 | - | 4.98 | 605,978 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,956 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,574 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,253 |
| Countries that Start with D | 0 | - | 4.96 | 703,274 |
| Countries That Border Russia | 0 | - | 4.98 | 459,740 |
| One Border Countries | 0 | - | 4.98 | 465,494 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,307 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,211 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,628 |
| Countries with Four Letters | 0 | - | 4.99 | 419,384 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,481 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,376 |
| Countries Bordering France | 0 | - | 4.83 | 400,497 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,272 |
| Northernmost Countries | 0 | - | 4.99 | 358,574 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,775 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,666 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,540 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,661 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,382 |
| Landlocked Countries | 0 | - | 4.99 | 415,097 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,869 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,859 |
| Australia Map Quiz | 0 | - | 4.94 | 342,865 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,326 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,567 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,646 |
| Countries that Start with H | 0 | - | 4.96 | 599,361 |
| Countries that Start with J | 0 | - | 4.98 | 597,423 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,052 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,385 |
| "Land" Countries | 0 | - | 4.98 | 334,036 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,679 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 286,008 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,868 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,858 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,024 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,023 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,550 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,623 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 265,714 |
| Countries with Z | 0 | - | 4.98 | 288,202 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,603 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,465 |
| Flags of North and South America | 0 | - | 4.99 | 368,762 |
| EU Countries Quiz | 0 | - | 4.99 | 270,804 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,843 |
| Countries that Border China | 0 | - | 4.96 | 262,108 |
| French-Speaking Countries | 0 | - | 4.85 | 269,220 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,989 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,423 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,639 |
| Every Country Shape | 0 | - | 5.00 | 460,366 |
| Europe Capital to Country | 0 | - | 4.99 | 248,404 |
| Longest International Borders | 0 | - | 4.99 | 264,069 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,317 |
| Biggest Cities by Language | 0 | - | 4.96 | 243,850 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,611 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,046 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,076 |
| Megacities on a World Map | 0 | - | 4.98 | 251,681 |
| World Currency Quiz | 0 | - | 4.92 | 299,455 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,731 |
| NATO Countries | 0 | - | 4.98 | 277,082 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,096 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,613 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,612 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,782 |
| Official Cities in the UK | 0 | - | 4.89 | 281,279 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,511 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,409 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,937 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,711 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,724 |
| Countries with Megacities | 0 | - | 4.99 | 248,045 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,161 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,362 |
| World Capitals by Map | 0 | - | 5.00 | 284,125 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,089 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,994 |
| World's Busiest Airports | 0 | - | 4.95 | 215,287 |
| Country Chain | 0 | - | 4.96 | 216,037 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,780 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,599 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,904 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,251 |
| Independence from Whom | 0 | - | 4.99 | 210,085 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,917 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,843 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,836 |
| Countries with Six Letters | 0 | - | 4.93 | 210,649 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,764 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,620 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,825 |
| Flags of Oceania | 0 | - | 5.00 | 256,108 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,887 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,382 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,123 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,540 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,027 |
| Countries in their Native Language | 0 | - | 4.99 | 196,952 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,630 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,037 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,565 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,593 |
| Monarchies of the World | 0 | - | 4.94 | 167,021 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,740 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,087 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,663 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,235 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,663 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,193 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,153 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,571 |
| Countries That End in Y | 0 | - | 4.90 | 185,278 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,603 |
| Olympic Host Countries | 0 | - | 4.98 | 199,162 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,237 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,034 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,330 |
| Every European Country Shape | 0 | - | 4.96 | 200,523 |
| Countries of the Middle East | 0 | - | 4.96 | 199,368 |
| Countries by Official Language | 0 | - | 4.95 | 193,106 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,387 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,601 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,893 |
| Counties of Ireland | 0 | - | 4.92 | 193,569 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,670 |
| Countries Bordering India | 0 | - | 4.98 | 163,083 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,800 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,574 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,853 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,756 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,523 |
| European Cities by Clue | 0 | - | 4.70 | 88,872 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,002 |
| Islands by Country #2 | 0 | - | 4.80 | 77,091 |
