| Island Countries | 0 | - | 4.99 | 708,373 |
| Countries by Three Words #1 | 0 | - | 4.95 | 264,065 |
| European Countries by Clue | 0 | - | 4.92 | 182,810 |
| Countries by Military Spending | 0 | - | 4.93 | 176,751 |
| Countries by Three Words #2 | 0 | - | 4.97 | 200,388 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,068,082 |
| US States Quiz | 0 | - | 5.00 | 16,750,352 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,597,793 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,945 |
| World Capitals Quiz | 0 | - | 5.00 | 5,043,472 |
| Europe Map Quiz | 0 | - | 5.00 | 4,740,482 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,808,748 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,466 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,529,441 |
| Random Capital to Country | 0 | - | 4.99 | 2,581,954 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,731,935 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,320 |
| All Country Flags of the World | 0 | - | 5.00 | 3,618,992 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,092,176 |
| Countries that Start with B | 0 | - | 4.95 | 2,283,754 |
| Countries that Start with A | 0 | - | 4.98 | 2,151,227 |
| Countries of Africa | 0 | - | 5.00 | 2,516,023 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,869 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,680,865 |
| South America Map Quiz | 0 | - | 5.00 | 1,543,183 |
| Countries that Start with C | 0 | - | 4.96 | 1,813,422 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,333 |
| Countries that Start with S | 0 | - | 4.98 | 1,747,300 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,150 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,575,173 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,854,789 |
| Countries that Start with G | 0 | - | 4.97 | 1,495,569 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,573 |
| Countries that Start with E | 0 | - | 4.95 | 1,370,065 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,078 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,420 |
| Countries that Start with I | 0 | - | 4.92 | 1,282,391 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,503 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,888 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,877 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,836 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,231,691 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,923 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 905,082 |
| Random Country to Capital | 0 | - | 4.98 | 913,734 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,708 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,936 |
| Asia Map Quiz | 0 | - | 4.99 | 909,340 |
| Countries that Start with U | 0 | - | 4.97 | 901,148 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,464 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,015,357 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,724 |
| Counties of England | 0 | - | 4.97 | 791,363 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,141 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,270 |
| Top World Languages | 0 | - | 4.92 | 815,635 |
| Countries of South America | 0 | - | 5.00 | 918,050 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,355 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,939 |
| Countries that Start with K | 0 | - | 4.97 | 811,013 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,884 |
| US States with an Empty Map | 0 | - | 5.00 | 620,462 |
| Countries that Start with V | 0 | - | 4.98 | 606,178 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,284 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,656 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,676 |
| Countries that Start with D | 0 | - | 4.96 | 703,701 |
| Countries That Border Russia | 0 | - | 4.98 | 459,900 |
| One Border Countries | 0 | - | 4.98 | 465,809 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,424 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,505 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,855 |
| Countries with Four Letters | 0 | - | 4.99 | 419,621 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,670 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,516 |
| Countries Bordering France | 0 | - | 4.83 | 400,677 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,424 |
| Northernmost Countries | 0 | - | 4.99 | 358,770 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,898 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,853 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,651 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,803 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,448 |
| Landlocked Countries | 0 | - | 4.99 | 415,494 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,025 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,996 |
| Australia Map Quiz | 0 | - | 4.94 | 342,967 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,455 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,806 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,994 |
| Countries that Start with H | 0 | - | 4.96 | 599,729 |
| Countries that Start with J | 0 | - | 4.98 | 597,762 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,234 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,562 |
| "Land" Countries | 0 | - | 4.98 | 334,128 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,746 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 287,063 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,135 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,942 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,143 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,502 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,887 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,680 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 266,850 |
| Countries with Z | 0 | - | 4.98 | 288,279 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,767 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,612 |
| Flags of North and South America | 0 | - | 4.99 | 369,149 |
| EU Countries Quiz | 0 | - | 4.99 | 270,987 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,979 |
| Countries that Border China | 0 | - | 4.96 | 262,206 |
| French-Speaking Countries | 0 | - | 4.85 | 269,330 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,068 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,481 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,825 |
| Every Country Shape | 0 | - | 5.00 | 460,682 |
| Europe Capital to Country | 0 | - | 4.99 | 248,525 |
| Longest International Borders | 0 | - | 4.99 | 264,134 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,588 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,504 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,931 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,164 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,126 |
| Megacities on a World Map | 0 | - | 4.98 | 251,860 |
| World Currency Quiz | 0 | - | 4.92 | 299,710 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,807 |
| NATO Countries | 0 | - | 4.98 | 277,350 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,143 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,727 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,690 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,858 |
| Official Cities in the UK | 0 | - | 4.89 | 281,465 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,620 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,448 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,012 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,785 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,791 |
| Countries with Megacities | 0 | - | 4.99 | 248,275 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,314 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,456 |
| World Capitals by Map | 0 | - | 5.00 | 284,321 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,151 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,069 |
| World's Busiest Airports | 0 | - | 4.95 | 215,952 |
| Country Chain | 0 | - | 4.96 | 216,143 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,898 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,755 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,993 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,306 |
| Independence from Whom | 0 | - | 4.99 | 210,188 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,031 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,891 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,935 |
| Countries with Six Letters | 0 | - | 4.93 | 210,737 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,802 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,660 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,940 |
| Flags of Oceania | 0 | - | 5.00 | 256,325 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,984 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,488 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,167 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,577 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,239 |
| Countries in their Native Language | 0 | - | 4.99 | 197,043 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,709 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,121 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,596 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,640 |
| Monarchies of the World | 0 | - | 4.94 | 167,123 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,783 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,164 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,745 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,272 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,774 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,223 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,205 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,771 |
| Countries That End in Y | 0 | - | 4.90 | 185,299 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,743 |
| Olympic Host Countries | 0 | - | 4.98 | 199,267 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,373 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,077 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,374 |
| Every European Country Shape | 0 | - | 4.96 | 200,605 |
| Countries of the Middle East | 0 | - | 4.96 | 199,520 |
| Countries by Official Language | 0 | - | 4.95 | 193,212 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,432 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,659 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,933 |
| Counties of Ireland | 0 | - | 4.92 | 193,693 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,730 |
| Countries Bordering India | 0 | - | 4.98 | 163,112 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,839 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,593 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,896 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,793 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,552 |
| European Cities by Clue | 0 | - | 4.70 | 88,889 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,015 |
| Islands by Country #2 | 0 | - | 4.80 | 77,121 |
