| Island Countries | 0 | - | 4.99 | 708,859 |
| Countries by Three Words #1 | 0 | - | 4.95 | 264,631 |
| European Countries by Clue | 0 | - | 4.92 | 183,273 |
| Countries by Military Spending | 0 | - | 4.93 | 176,982 |
| Countries by Three Words #2 | 0 | - | 4.97 | 201,064 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,171,593 |
| US States Quiz | 0 | - | 5.00 | 16,781,672 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,604,695 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,696 |
| World Capitals Quiz | 0 | - | 5.00 | 5,051,255 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,389 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,813,978 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,685 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,363 |
| Random Capital to Country | 0 | - | 4.99 | 2,584,425 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,741,239 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,885 |
| All Country Flags of the World | 0 | - | 5.00 | 3,631,021 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,495 |
| Countries that Start with B | 0 | - | 4.95 | 2,286,398 |
| Countries that Start with A | 0 | - | 4.98 | 2,154,164 |
| Countries of Africa | 0 | - | 5.00 | 2,521,796 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,971 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,683,162 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,663 |
| Countries that Start with C | 0 | - | 4.96 | 1,815,572 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,194 |
| Countries that Start with S | 0 | - | 4.98 | 1,749,162 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,089 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,578,073 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,065 |
| Countries that Start with G | 0 | - | 4.97 | 1,497,357 |
| Countries that Start with M | 0 | - | 4.97 | 1,377,075 |
| Countries that Start with E | 0 | - | 4.95 | 1,371,838 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,580 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,766 |
| Countries that Start with I | 0 | - | 4.92 | 1,283,777 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,075 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,463 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,845 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,234 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,869 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,254 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 905,579 |
| Random Country to Capital | 0 | - | 4.98 | 915,147 |
| Countries that Start with T | 0 | - | 4.90 | 1,006,766 |
| Biggest Cities in the United States | 0 | - | 4.93 | 972,078 |
| Asia Map Quiz | 0 | - | 4.99 | 911,060 |
| Countries that Start with U | 0 | - | 4.97 | 901,985 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,947 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,017,389 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,498 |
| Counties of England | 0 | - | 4.97 | 792,669 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,886 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,669 |
| Top World Languages | 0 | - | 4.92 | 817,470 |
| Countries of South America | 0 | - | 5.00 | 919,812 |
| Africa Capitals Quiz | 0 | - | 4.99 | 733,778 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,156 |
| Countries that Start with K | 0 | - | 4.97 | 812,122 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,313 |
| US States with an Empty Map | 0 | - | 5.00 | 621,448 |
| Countries that Start with V | 0 | - | 4.98 | 607,183 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 504,125 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,912 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,209 |
| Countries that Start with D | 0 | - | 4.96 | 705,140 |
| Countries That Border Russia | 0 | - | 4.98 | 460,373 |
| One Border Countries | 0 | - | 4.98 | 466,452 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,760 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,263 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,864 |
| Countries with Four Letters | 0 | - | 4.99 | 420,378 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,089 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,125 |
| Countries Bordering France | 0 | - | 4.83 | 401,161 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,882 |
| Northernmost Countries | 0 | - | 4.99 | 359,421 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,249 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,862 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,027 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,146 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,672 |
| Landlocked Countries | 0 | - | 4.99 | 416,764 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,587 |
| World Map without 12 Countries | 0 | - | 4.97 | 343,369 |
| Australia Map Quiz | 0 | - | 4.94 | 343,299 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,865 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,428 |
| Majority Muslim Countries | 0 | - | 4.98 | 371,929 |
| Countries that Start with H | 0 | - | 4.96 | 600,951 |
| Countries that Start with J | 0 | - | 4.98 | 598,934 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,762 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,984 |
| "Land" Countries | 0 | - | 4.98 | 334,643 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,944 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 288,518 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,900 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,189 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,528 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,021 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,368 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,886 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 268,606 |
| Countries with Z | 0 | - | 4.98 | 288,802 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,647 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,928 |
| Flags of North and South America | 0 | - | 4.99 | 370,240 |
| EU Countries Quiz | 0 | - | 4.99 | 271,687 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,360 |
| Countries that Border China | 0 | - | 4.96 | 262,511 |
| French-Speaking Countries | 0 | - | 4.85 | 269,767 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,608 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,647 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,427 |
| Every Country Shape | 0 | - | 5.00 | 461,867 |
| Europe Capital to Country | 0 | - | 4.99 | 248,943 |
| Longest International Borders | 0 | - | 4.99 | 264,318 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,459 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,471 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,952 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,646 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,325 |
| Megacities on a World Map | 0 | - | 4.98 | 252,379 |
| World Currency Quiz | 0 | - | 4.92 | 300,598 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,072 |
| NATO Countries | 0 | - | 4.98 | 278,151 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,290 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,107 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,894 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,200 |
| Official Cities in the UK | 0 | - | 4.89 | 282,182 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,963 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,579 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,243 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,294 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,004 |
| Countries with Megacities | 0 | - | 4.99 | 249,030 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,606 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,782 |
| World Capitals by Map | 0 | - | 5.00 | 284,838 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,286 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,262 |
| World's Busiest Airports | 0 | - | 4.96 | 229,112 |
| Country Chain | 0 | - | 4.96 | 216,434 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,309 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,278 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,248 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,493 |
| Independence from Whom | 0 | - | 4.99 | 210,831 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,337 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,051 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,065 |
| Countries with Six Letters | 0 | - | 4.93 | 211,157 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,032 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,767 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,279 |
| Flags of Oceania | 0 | - | 5.00 | 257,039 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,264 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,718 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,286 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,741 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,921 |
| Countries in their Native Language | 0 | - | 4.99 | 197,652 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,920 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,403 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,709 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,848 |
| Monarchies of the World | 0 | - | 4.94 | 167,445 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,052 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,358 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,031 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,426 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,101 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,384 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,362 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,273 |
| Countries That End in Y | 0 | - | 4.90 | 185,438 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,106 |
| Olympic Host Countries | 0 | - | 4.98 | 199,546 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,731 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,187 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,525 |
| Every European Country Shape | 0 | - | 4.96 | 200,843 |
| Countries of the Middle East | 0 | - | 4.96 | 199,876 |
| Countries by Official Language | 0 | - | 4.95 | 194,034 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,555 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,815 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,026 |
| Counties of Ireland | 0 | - | 4.92 | 194,057 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,918 |
| Countries Bordering India | 0 | - | 4.98 | 163,202 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,943 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,648 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,456 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,887 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,633 |
| European Cities by Clue | 0 | - | 4.70 | 88,952 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,069 |
| Islands by Country #2 | 0 | - | 4.80 | 77,199 |
