| Island Countries | 0 | - | 4.99 | 708,852 |
| Countries by Three Words #1 | 0 | - | 4.95 | 264,629 |
| 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 | 201,060 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,170,581 |
| US States Quiz | 0 | - | 5.00 | 16,781,284 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,604,664 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,652 |
| World Capitals Quiz | 0 | - | 5.00 | 5,051,175 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,317 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,813,924 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,655 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,342 |
| Random Capital to Country | 0 | - | 4.99 | 2,584,401 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,741,154 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,820 |
| All Country Flags of the World | 0 | - | 5.00 | 3,630,898 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,456 |
| Countries that Start with B | 0 | - | 4.95 | 2,286,353 |
| Countries that Start with A | 0 | - | 4.98 | 2,154,120 |
| Countries of Africa | 0 | - | 5.00 | 2,521,719 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,967 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,683,139 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,638 |
| Countries that Start with C | 0 | - | 4.96 | 1,815,539 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,179 |
| Countries that Start with S | 0 | - | 4.98 | 1,749,143 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,076 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,578,046 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,024 |
| Countries that Start with G | 0 | - | 4.97 | 1,497,341 |
| Countries that Start with M | 0 | - | 4.97 | 1,377,054 |
| Countries that Start with E | 0 | - | 4.95 | 1,371,817 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,569 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,764 |
| Countries that Start with I | 0 | - | 4.92 | 1,283,765 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,060 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,450 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,839 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,219 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,829 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,242 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 905,575 |
| Random Country to Capital | 0 | - | 4.98 | 915,111 |
| Countries that Start with T | 0 | - | 4.90 | 1,006,757 |
| Biggest Cities in the United States | 0 | - | 4.93 | 972,058 |
| Asia Map Quiz | 0 | - | 4.99 | 911,051 |
| Countries that Start with U | 0 | - | 4.97 | 901,976 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,901 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,017,376 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,494 |
| Counties of England | 0 | - | 4.97 | 792,655 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,878 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,662 |
| Top World Languages | 0 | - | 4.92 | 817,455 |
| Countries of South America | 0 | - | 5.00 | 919,799 |
| Africa Capitals Quiz | 0 | - | 4.99 | 733,769 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,123 |
| Countries that Start with K | 0 | - | 4.97 | 812,111 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,308 |
| US States with an Empty Map | 0 | - | 5.00 | 621,436 |
| Countries that Start with V | 0 | - | 4.98 | 607,175 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 504,113 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,907 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,199 |
| Countries that Start with D | 0 | - | 4.96 | 705,118 |
| Countries That Border Russia | 0 | - | 4.98 | 460,369 |
| One Border Countries | 0 | - | 4.98 | 466,445 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,759 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,249 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,848 |
| Countries with Four Letters | 0 | - | 4.99 | 420,373 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,084 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,116 |
| Countries Bordering France | 0 | - | 4.83 | 401,151 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,879 |
| Northernmost Countries | 0 | - | 4.99 | 359,416 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,244 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,860 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,023 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,144 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,671 |
| Landlocked Countries | 0 | - | 4.99 | 416,742 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,582 |
| World Map without 12 Countries | 0 | - | 4.97 | 343,363 |
| Australia Map Quiz | 0 | - | 4.94 | 343,293 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,862 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,414 |
| Majority Muslim Countries | 0 | - | 4.98 | 371,919 |
| Countries that Start with H | 0 | - | 4.96 | 600,941 |
| Countries that Start with J | 0 | - | 4.98 | 598,926 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,758 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,982 |
| "Land" Countries | 0 | - | 4.98 | 334,640 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,941 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 288,506 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,891 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,189 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,511 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,003 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,363 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,884 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 268,595 |
| Countries with Z | 0 | - | 4.98 | 288,796 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,630 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,922 |
| Flags of North and South America | 0 | - | 4.99 | 370,223 |
| EU Countries Quiz | 0 | - | 4.99 | 271,679 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,354 |
| Countries that Border China | 0 | - | 4.96 | 262,510 |
| French-Speaking Countries | 0 | - | 4.85 | 269,766 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,603 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,645 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,424 |
| Every Country Shape | 0 | - | 5.00 | 461,848 |
| Europe Capital to Country | 0 | - | 4.99 | 248,942 |
| Longest International Borders | 0 | - | 4.99 | 264,312 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,451 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,463 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,935 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,640 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,322 |
| Megacities on a World Map | 0 | - | 4.98 | 252,372 |
| World Currency Quiz | 0 | - | 4.92 | 300,589 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,071 |
| NATO Countries | 0 | - | 4.98 | 278,146 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,285 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,102 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,893 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,198 |
| Official Cities in the UK | 0 | - | 4.89 | 282,176 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,956 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,574 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,242 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,291 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,001 |
| Countries with Megacities | 0 | - | 4.99 | 249,018 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,604 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,779 |
| World Capitals by Map | 0 | - | 5.00 | 284,835 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,285 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,261 |
| World's Busiest Airports | 0 | - | 4.96 | 229,067 |
| Country Chain | 0 | - | 4.96 | 216,433 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,305 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,278 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,246 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,489 |
| Independence from Whom | 0 | - | 4.99 | 210,828 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,335 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,050 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,065 |
| Countries with Six Letters | 0 | - | 4.93 | 211,155 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,009 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,764 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,274 |
| Flags of Oceania | 0 | - | 5.00 | 257,034 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,262 |
| 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 | 197,739 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,913 |
| Countries in their Native Language | 0 | - | 4.99 | 197,649 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,919 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,401 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,709 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,846 |
| Monarchies of the World | 0 | - | 4.94 | 167,443 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,049 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,356 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,029 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,426 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,098 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,383 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,356 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,268 |
| Countries That End in Y | 0 | - | 4.90 | 185,433 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,097 |
| Olympic Host Countries | 0 | - | 4.98 | 199,540 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,726 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,185 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,524 |
| Every European Country Shape | 0 | - | 4.96 | 200,841 |
| Countries of the Middle East | 0 | - | 4.96 | 199,874 |
| Countries by Official Language | 0 | - | 4.95 | 194,029 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,554 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,813 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,025 |
| Counties of Ireland | 0 | - | 4.92 | 194,056 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,916 |
| Countries Bordering India | 0 | - | 4.98 | 163,201 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,941 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,648 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,453 |
| 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 | 77,197 |
