| Island Countries | 0 | - | 4.99 | 708,057 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,478 |
| European Countries by Clue | 0 | - | 4.92 | 182,493 |
| Countries by Military Spending | 0 | - | 4.93 | 176,590 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,984 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,009,217 |
| US States Quiz | 0 | - | 5.00 | 16,730,246 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,593,814 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,258 |
| World Capitals Quiz | 0 | - | 5.00 | 5,039,191 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,727 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,805,432 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,349 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,528,193 |
| Random Capital to Country | 0 | - | 4.99 | 2,580,210 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,862 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,491 |
| All Country Flags of the World | 0 | - | 5.00 | 3,612,626 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,090,386 |
| Countries that Start with B | 0 | - | 4.95 | 2,282,216 |
| Countries that Start with A | 0 | - | 4.98 | 2,149,516 |
| Countries of Africa | 0 | - | 5.00 | 2,512,645 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,105 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,679,565 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,332 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,231 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,135 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,244 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,976 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,610 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,852,218 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,494 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,699 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,083 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,306 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,167 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,552 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,728 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,957 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,298 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,008 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,616 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,115 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,743 |
| Random Country to Capital | 0 | - | 4.98 | 912,949 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,104 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,536 |
| Asia Map Quiz | 0 | - | 4.99 | 908,355 |
| Countries that Start with U | 0 | - | 4.97 | 900,651 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,861 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,013,911 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,303 |
| Counties of England | 0 | - | 4.97 | 790,413 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,676 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,410 |
| Top World Languages | 0 | - | 4.92 | 814,620 |
| Countries of South America | 0 | - | 5.00 | 916,768 |
| Africa Capitals Quiz | 0 | - | 4.99 | 731,625 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,174 |
| Countries that Start with K | 0 | - | 4.97 | 810,372 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,633 |
| US States with an Empty Map | 0 | - | 5.00 | 619,746 |
| Countries that Start with V | 0 | - | 4.98 | 605,753 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,708 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,478 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,837 |
| Countries that Start with D | 0 | - | 4.96 | 702,850 |
| Countries That Border Russia | 0 | - | 4.98 | 459,578 |
| One Border Countries | 0 | - | 4.98 | 465,200 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,186 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,932 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,416 |
| Countries with Four Letters | 0 | - | 4.99 | 419,183 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,311 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,245 |
| Countries Bordering France | 0 | - | 4.83 | 400,283 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,114 |
| Northernmost Countries | 0 | - | 4.99 | 358,361 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,669 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,526 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,426 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,541 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,318 |
| Landlocked Countries | 0 | - | 4.99 | 414,737 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,693 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,735 |
| Australia Map Quiz | 0 | - | 4.94 | 342,790 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,221 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,323 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,118 |
| Countries that Start with H | 0 | - | 4.96 | 598,996 |
| Countries that Start with J | 0 | - | 4.98 | 597,068 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,910 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,232 |
| "Land" Countries | 0 | - | 4.98 | 333,941 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,612 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,850 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,670 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,750 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,886 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,566 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,248 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,569 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,586 |
| Countries with Z | 0 | - | 4.98 | 288,121 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,460 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,361 |
| Flags of North and South America | 0 | - | 4.99 | 368,433 |
| EU Countries Quiz | 0 | - | 4.99 | 270,596 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,719 |
| Countries that Border China | 0 | - | 4.96 | 262,035 |
| French-Speaking Countries | 0 | - | 4.85 | 269,129 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,917 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,376 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,466 |
| Every Country Shape | 0 | - | 5.00 | 460,052 |
| Europe Capital to Country | 0 | - | 4.99 | 248,292 |
| Longest International Borders | 0 | - | 4.99 | 263,996 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,077 |
| Biggest Cities by Language | 0 | - | 4.96 | 242,136 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,314 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,931 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,023 |
| Megacities on a World Map | 0 | - | 4.98 | 251,479 |
| World Currency Quiz | 0 | - | 4.92 | 299,236 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,641 |
| NATO Countries | 0 | - | 4.98 | 276,853 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,054 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,503 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,522 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,713 |
| Official Cities in the UK | 0 | - | 4.89 | 281,107 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,417 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,368 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,853 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,630 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,669 |
| Countries with Megacities | 0 | - | 4.99 | 247,824 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,038 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,264 |
| World Capitals by Map | 0 | - | 5.00 | 283,974 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,049 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,936 |
| World's Busiest Airports | 0 | - | 4.94 | 213,791 |
| Country Chain | 0 | - | 4.96 | 215,957 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,671 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,489 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,845 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,192 |
| Independence from Whom | 0 | - | 4.99 | 209,988 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,783 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,793 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,742 |
| Countries with Six Letters | 0 | - | 4.93 | 210,588 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,725 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,588 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,730 |
| Flags of Oceania | 0 | - | 5.00 | 255,916 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,772 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,266 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,091 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,498 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,836 |
| Countries in their Native Language | 0 | - | 4.99 | 196,863 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,547 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,687 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,529 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,543 |
| Monarchies of the World | 0 | - | 4.94 | 166,929 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,693 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,018 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,598 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,192 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,573 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,170 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,090 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,417 |
| Countries That End in Y | 0 | - | 4.90 | 185,262 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,512 |
| Olympic Host Countries | 0 | - | 4.98 | 199,092 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,132 |
| Regions of Countries #1 | 0 | - | 4.97 | 159,019 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,289 |
| Every European Country Shape | 0 | - | 4.96 | 200,435 |
| Countries of the Middle East | 0 | - | 4.96 | 199,264 |
| Countries by Official Language | 0 | - | 4.95 | 193,009 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,339 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,524 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,865 |
| Counties of Ireland | 0 | - | 4.92 | 193,445 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,605 |
| Countries Bordering India | 0 | - | 4.98 | 162,800 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,757 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,560 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,799 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,722 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,486 |
| European Cities by Clue | 0 | - | 4.70 | 88,854 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,994 |
| Islands by Country #2 | 0 | - | 4.80 | 77,067 |
