| Island Countries | 0 | - | 4.99 | 708,290 |
| Countries by Three Words #1 | 0 | - | 4.95 | 263,703 |
| European Countries by Clue | 0 | - | 4.92 | 182,730 |
| Countries by Military Spending | 0 | - | 4.93 | 176,705 |
| Countries by Three Words #2 | 0 | - | 4.97 | 200,053 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,048,775 |
| US States Quiz | 0 | - | 5.00 | 16,743,900 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,596,392 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,459 |
| World Capitals Quiz | 0 | - | 5.00 | 5,042,168 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,329 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,807,698 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,775 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,529,059 |
| Random Capital to Country | 0 | - | 4.99 | 2,581,421 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,729,976 |
| Africa Map Quiz | 0 | - | 5.00 | 2,107,607 |
| All Country Flags of the World | 0 | - | 5.00 | 3,616,935 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,091,623 |
| Countries that Start with B | 0 | - | 4.95 | 2,283,282 |
| Countries that Start with A | 0 | - | 4.98 | 2,150,679 |
| Countries of Africa | 0 | - | 5.00 | 2,514,980 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,627 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,680,459 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,890 |
| Countries that Start with C | 0 | - | 4.96 | 1,813,060 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,835 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,989 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,753 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,574,658 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,986 |
| Countries that Start with G | 0 | - | 4.97 | 1,495,229 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,316 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,764 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,832 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,346 |
| Countries that Start with I | 0 | - | 4.92 | 1,282,124 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,253 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,586 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,688 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,593 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,231,033 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,667 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,977 |
| Random Country to Capital | 0 | - | 4.98 | 913,452 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,520 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,542 |
| Asia Map Quiz | 0 | - | 4.99 | 908,951 |
| Countries that Start with U | 0 | - | 4.97 | 900,981 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,981 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,014,910 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 730,578 |
| Counties of England | 0 | - | 4.97 | 791,065 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,980 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,014 |
| Top World Languages | 0 | - | 4.92 | 815,318 |
| Countries of South America | 0 | - | 5.00 | 917,644 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,155 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,711 |
| Countries that Start with K | 0 | - | 4.97 | 810,803 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,793 |
| US States with an Empty Map | 0 | - | 5.00 | 620,230 |
| Countries that Start with V | 0 | - | 4.98 | 606,060 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,063 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,605 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,403 |
| Countries that Start with D | 0 | - | 4.96 | 703,451 |
| Countries That Border Russia | 0 | - | 4.98 | 459,801 |
| One Border Countries | 0 | - | 4.98 | 465,613 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,353 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,316 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,721 |
| Countries with Four Letters | 0 | - | 4.99 | 419,470 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,548 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,423 |
| Countries Bordering France | 0 | - | 4.83 | 400,563 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,328 |
| Northernmost Countries | 0 | - | 4.99 | 358,643 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,819 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,756 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,582 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,737 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,409 |
| Landlocked Countries | 0 | - | 4.99 | 415,274 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,920 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,911 |
| Australia Map Quiz | 0 | - | 4.94 | 342,900 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,383 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,675 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,801 |
| Countries that Start with H | 0 | - | 4.96 | 599,516 |
| Countries that Start with J | 0 | - | 4.98 | 597,562 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,133 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,444 |
| "Land" Countries | 0 | - | 4.98 | 334,078 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,707 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 286,529 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,969 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,888 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,063 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,196 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,732 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,640 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 266,241 |
| Countries with Z | 0 | - | 4.98 | 288,229 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,669 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,532 |
| Flags of North and South America | 0 | - | 4.99 | 368,899 |
| EU Countries Quiz | 0 | - | 4.99 | 270,883 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,909 |
| Countries that Border China | 0 | - | 4.96 | 262,142 |
| French-Speaking Countries | 0 | - | 4.85 | 269,267 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,021 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,443 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,705 |
| Every Country Shape | 0 | - | 5.00 | 460,484 |
| Europe Capital to Country | 0 | - | 4.99 | 248,443 |
| Longest International Borders | 0 | - | 4.99 | 264,096 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,424 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,196 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,733 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,100 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,097 |
| Megacities on a World Map | 0 | - | 4.98 | 251,732 |
| World Currency Quiz | 0 | - | 4.92 | 299,551 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,767 |
| NATO Countries | 0 | - | 4.98 | 277,202 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,118 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,645 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,645 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,821 |
| Official Cities in the UK | 0 | - | 4.89 | 281,346 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,549 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,423 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,964 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,732 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,758 |
| Countries with Megacities | 0 | - | 4.99 | 248,117 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,216 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,396 |
| World Capitals by Map | 0 | - | 5.00 | 284,201 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,112 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,020 |
| World's Busiest Airports | 0 | - | 4.95 | 215,563 |
| Country Chain | 0 | - | 4.96 | 216,073 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,823 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,656 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,936 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,277 |
| Independence from Whom | 0 | - | 4.99 | 210,125 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,964 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,858 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,891 |
| Countries with Six Letters | 0 | - | 4.93 | 210,680 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,776 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,633 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,871 |
| Flags of Oceania | 0 | - | 5.00 | 256,174 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,932 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,431 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,142 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,552 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,110 |
| Countries in their Native Language | 0 | - | 4.99 | 196,991 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,662 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,072 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,574 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,615 |
| Monarchies of the World | 0 | - | 4.94 | 167,059 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,750 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,110 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,698 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,253 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,706 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,204 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,173 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,679 |
| Countries That End in Y | 0 | - | 4.90 | 185,284 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,644 |
| Olympic Host Countries | 0 | - | 4.98 | 199,199 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,292 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,050 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,347 |
| Every European Country Shape | 0 | - | 4.96 | 200,549 |
| Countries of the Middle East | 0 | - | 4.96 | 199,431 |
| Countries by Official Language | 0 | - | 4.95 | 193,156 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,402 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,620 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,905 |
| Counties of Ireland | 0 | - | 4.92 | 193,625 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,687 |
| Countries Bordering India | 0 | - | 4.98 | 163,090 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,816 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,580 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,874 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,776 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,535 |
| European Cities by Clue | 0 | - | 4.70 | 88,878 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,006 |
| Islands by Country #2 | 0 | - | 4.80 | 77,102 |
