| Island Countries | 0 | - | 4.99 | 708,206 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,960 |
| European Countries by Clue | 0 | - | 4.92 | 182,607 |
| Countries by Military Spending | 0 | - | 4.93 | 176,666 |
| Countries by Three Words #2 | 0 | - | 4.97 | 199,441 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,033,298 |
| US States Quiz | 0 | - | 5.00 | 16,738,674 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,595,417 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,093 |
| World Capitals Quiz | 0 | - | 5.00 | 5,041,170 |
| Europe Map Quiz | 0 | - | 5.00 | 4,738,343 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,806,794 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,176 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,528,745 |
| Random Capital to Country | 0 | - | 4.99 | 2,580,911 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,728,460 |
| Africa Map Quiz | 0 | - | 5.00 | 2,107,069 |
| All Country Flags of the World | 0 | - | 5.00 | 3,615,330 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,091,274 |
| Countries that Start with B | 0 | - | 4.95 | 2,282,905 |
| Countries that Start with A | 0 | - | 4.98 | 2,150,276 |
| Countries of Africa | 0 | - | 5.00 | 2,513,990 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,465 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,680,130 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,640 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,753 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,599 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,726 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,487 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,574,269 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,273 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,949 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,089 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,513 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,651 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,291 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,921 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,058 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,361 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,548 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,386 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,230,485 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,471 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,908 |
| Random Country to Capital | 0 | - | 4.98 | 913,280 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,376 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,190 |
| Asia Map Quiz | 0 | - | 4.99 | 908,745 |
| Countries that Start with U | 0 | - | 4.97 | 900,860 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,512 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,014,520 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 730,471 |
| Counties of England | 0 | - | 4.97 | 790,757 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,871 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,769 |
| Top World Languages | 0 | - | 4.92 | 815,041 |
| Countries of South America | 0 | - | 5.00 | 917,348 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,016 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,529 |
| Countries that Start with K | 0 | - | 4.97 | 810,651 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,749 |
| US States with an Empty Map | 0 | - | 5.00 | 620,049 |
| Countries that Start with V | 0 | - | 4.98 | 605,955 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,934 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,567 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,213 |
| Countries that Start with D | 0 | - | 4.96 | 703,236 |
| Countries That Border Russia | 0 | - | 4.98 | 459,726 |
| One Border Countries | 0 | - | 4.98 | 465,460 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,297 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,182 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,604 |
| Countries with Four Letters | 0 | - | 4.99 | 419,365 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,458 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,361 |
| Countries Bordering France | 0 | - | 4.83 | 400,483 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,260 |
| Northernmost Countries | 0 | - | 4.99 | 358,548 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,761 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,650 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,530 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,649 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,378 |
| Landlocked Countries | 0 | - | 4.99 | 415,065 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,852 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,843 |
| Australia Map Quiz | 0 | - | 4.94 | 342,857 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,320 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,546 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,628 |
| Countries that Start with H | 0 | - | 4.96 | 599,325 |
| Countries that Start with J | 0 | - | 4.98 | 597,391 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,035 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,368 |
| "Land" Countries | 0 | - | 4.98 | 334,030 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,676 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 285,791 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,846 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,848 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,016 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,962 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,502 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,620 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 265,546 |
| Countries with Z | 0 | - | 4.98 | 288,197 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,583 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,442 |
| Flags of North and South America | 0 | - | 4.99 | 368,728 |
| EU Countries Quiz | 0 | - | 4.99 | 270,781 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,833 |
| Countries that Border China | 0 | - | 4.96 | 262,105 |
| French-Speaking Countries | 0 | - | 4.85 | 269,209 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,984 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,421 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,621 |
| Every Country Shape | 0 | - | 5.00 | 460,331 |
| Europe Capital to Country | 0 | - | 4.99 | 248,397 |
| Longest International Borders | 0 | - | 4.99 | 264,062 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,290 |
| Biggest Cities by Language | 0 | - | 4.96 | 243,772 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,587 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,032 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,069 |
| Megacities on a World Map | 0 | - | 4.98 | 251,657 |
| World Currency Quiz | 0 | - | 4.92 | 299,437 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,726 |
| NATO Countries | 0 | - | 4.98 | 277,048 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,094 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,601 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,604 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,770 |
| Official Cities in the UK | 0 | - | 4.89 | 281,263 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,498 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,405 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,931 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,704 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,720 |
| Countries with Megacities | 0 | - | 4.99 | 248,026 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,150 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,351 |
| World Capitals by Map | 0 | - | 5.00 | 284,110 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,086 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,986 |
| World's Busiest Airports | 0 | - | 4.95 | 215,211 |
| Country Chain | 0 | - | 4.96 | 216,028 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,763 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,590 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,897 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,248 |
| Independence from Whom | 0 | - | 4.99 | 210,076 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,904 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,840 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,830 |
| Countries with Six Letters | 0 | - | 4.93 | 210,644 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,760 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,620 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,815 |
| Flags of Oceania | 0 | - | 5.00 | 256,093 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,877 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,376 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,118 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,536 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,003 |
| Countries in their Native Language | 0 | - | 4.99 | 196,943 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,624 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,029 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,563 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,590 |
| Monarchies of the World | 0 | - | 4.94 | 167,013 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,734 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,080 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,658 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,234 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,655 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,188 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,148 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,554 |
| Countries That End in Y | 0 | - | 4.90 | 185,277 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,591 |
| Olympic Host Countries | 0 | - | 4.98 | 199,158 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,225 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,033 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,324 |
| Every European Country Shape | 0 | - | 4.96 | 200,513 |
| Countries of the Middle East | 0 | - | 4.96 | 199,351 |
| Countries by Official Language | 0 | - | 4.95 | 193,098 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,386 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,597 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,891 |
| Counties of Ireland | 0 | - | 4.92 | 193,554 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,665 |
| Countries Bordering India | 0 | - | 4.98 | 163,082 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,795 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,573 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,847 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,751 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,520 |
| European Cities by Clue | 0 | - | 4.70 | 88,871 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,000 |
| Islands by Country #2 | 0 | - | 4.80 | 77,089 |
