| Island Countries | 0 | - | 4.99 | 707,679 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,255 |
| European Countries by Clue | 0 | - | 4.92 | 182,389 |
| Countries by Military Spending | 0 | - | 4.93 | 176,427 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,580 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,931,964 |
| US States Quiz | 0 | - | 5.00 | 16,705,775 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,588,790 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,236 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,575 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,237 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,801,740 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,689 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,631 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,338 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,718,223 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,699 |
| All Country Flags of the World | 0 | - | 5.00 | 3,603,681 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,272 |
| Countries that Start with B | 0 | - | 4.95 | 2,280,180 |
| Countries that Start with A | 0 | - | 4.97 | 2,147,200 |
| Countries of Africa | 0 | - | 5.00 | 2,508,659 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,860 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,905 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,384 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,581 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,192 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,739 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,362 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,476 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,879 |
| Countries that Start with G | 0 | - | 4.97 | 1,493,047 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,542 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,734 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,054 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,879 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,459 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,711 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,649 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,537 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,919 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,211 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,044 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,320 |
| Random Country to Capital | 0 | - | 4.98 | 911,819 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,335 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,941 |
| Asia Map Quiz | 0 | - | 4.99 | 907,266 |
| Countries that Start with U | 0 | - | 4.97 | 900,018 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,809 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,012,026 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,769 |
| Counties of England | 0 | - | 4.97 | 789,427 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,125 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,485 |
| Top World Languages | 0 | - | 4.92 | 813,332 |
| Countries of South America | 0 | - | 5.00 | 915,004 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,443 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,078 |
| Countries that Start with K | 0 | - | 4.97 | 809,528 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,235 |
| US States with an Empty Map | 0 | - | 5.00 | 618,987 |
| Countries that Start with V | 0 | - | 4.98 | 605,182 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,024 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,222 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,800 |
| Countries that Start with D | 0 | - | 4.96 | 701,724 |
| Countries That Border Russia | 0 | - | 4.98 | 458,985 |
| One Border Countries | 0 | - | 4.98 | 464,484 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,910 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,389 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,923 |
| Countries with Four Letters | 0 | - | 4.99 | 418,618 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,863 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,843 |
| Countries Bordering France | 0 | - | 4.83 | 399,390 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,726 |
| Northernmost Countries | 0 | - | 4.99 | 357,807 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,377 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,163 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,121 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,321 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,140 |
| Landlocked Countries | 0 | - | 4.99 | 413,759 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,285 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,412 |
| Australia Map Quiz | 0 | - | 4.94 | 342,551 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,858 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,714 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,616 |
| Countries that Start with H | 0 | - | 4.96 | 598,111 |
| Countries that Start with J | 0 | - | 4.98 | 596,173 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,486 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,930 |
| "Land" Countries | 0 | - | 4.98 | 333,688 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,417 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,720 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,029 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,532 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,582 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,612 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,896 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,354 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,194 |
| Countries with Z | 0 | - | 4.98 | 287,906 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,168 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,974 |
| Flags of North and South America | 0 | - | 4.99 | 367,471 |
| EU Countries Quiz | 0 | - | 4.99 | 270,050 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,341 |
| Countries that Border China | 0 | - | 4.96 | 261,854 |
| French-Speaking Countries | 0 | - | 4.85 | 268,837 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,717 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,263 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,021 |
| Every Country Shape | 0 | - | 5.00 | 459,083 |
| Europe Capital to Country | 0 | - | 4.99 | 247,973 |
| Longest International Borders | 0 | - | 4.99 | 263,553 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,433 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,875 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,215 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,697 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,862 |
| Megacities on a World Map | 0 | - | 4.98 | 251,034 |
| World Currency Quiz | 0 | - | 4.92 | 298,602 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,377 |
| NATO Countries | 0 | - | 4.98 | 275,876 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,921 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,193 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,321 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,499 |
| Official Cities in the UK | 0 | - | 4.89 | 280,639 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,181 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,239 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,348 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,447 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,509 |
| Countries with Megacities | 0 | - | 4.99 | 247,105 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,810 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 231,014 |
| World Capitals by Map | 0 | - | 5.00 | 283,278 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,962 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,411 |
| World's Busiest Airports | 0 | - | 4.94 | 210,527 |
| Country Chain | 0 | - | 4.96 | 215,767 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,430 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,886 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,652 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,971 |
| Independence from Whom | 0 | - | 4.99 | 209,737 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,075 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,679 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,625 |
| Countries with Six Letters | 0 | - | 4.93 | 210,390 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,620 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,489 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,457 |
| Flags of Oceania | 0 | - | 5.00 | 255,307 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,519 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,053 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,990 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,379 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,281 |
| Countries in their Native Language | 0 | - | 4.99 | 196,665 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,360 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,377 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,407 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,399 |
| Monarchies of the World | 0 | - | 4.94 | 166,663 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,570 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 190,785 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,429 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,065 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,215 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,092 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,948 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,954 |
| Countries That End in Y | 0 | - | 4.90 | 185,214 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,288 |
| Olympic Host Countries | 0 | - | 4.98 | 198,923 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,808 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,937 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,146 |
| Every European Country Shape | 0 | - | 4.96 | 200,236 |
| Countries of the Middle East | 0 | - | 4.96 | 198,981 |
| Countries by Official Language | 0 | - | 4.95 | 192,803 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,222 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,122 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,754 |
| Counties of Ireland | 0 | - | 4.92 | 193,142 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,474 |
| Countries Bordering India | 0 | - | 4.98 | 162,622 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,668 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,509 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,685 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,642 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,432 |
| European Cities by Clue | 0 | - | 4.70 | 88,823 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,962 |
| Islands by Country #2 | 0 | - | 4.80 | 77,002 |
