| Island Countries | 0 | - | 4.99 | 711,075 |
| Countries by Three Words #1 | 0 | - | 4.95 | 265,888 |
| European Countries by Clue | 0 | - | 4.92 | 183,818 |
| Countries by Military Spending | 0 | - | 4.93 | 178,361 |
| Countries by Three Words #2 | 0 | - | 4.97 | 203,213 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,589,839 |
| US States Quiz | 0 | - | 5.00 | 16,916,653 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,632,612 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,451 |
| World Capitals Quiz | 0 | - | 5.00 | 5,083,709 |
| Europe Map Quiz | 0 | - | 5.00 | 4,770,792 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,835,051 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,383,881 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,539,975 |
| Random Capital to Country | 0 | - | 4.99 | 2,594,595 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,779,466 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,635 |
| All Country Flags of the World | 0 | - | 5.00 | 3,679,677 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,105,401 |
| Countries that Start with B | 0 | - | 4.95 | 2,297,975 |
| Countries that Start with A | 0 | - | 4.98 | 2,166,579 |
| Countries of Africa | 0 | - | 5.00 | 2,544,713 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,684 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,692,763 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,699 |
| Countries that Start with C | 0 | - | 4.96 | 1,824,947 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,384,811 |
| Countries that Start with S | 0 | - | 4.98 | 1,757,471 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,305 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,590,719 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,877,603 |
| Countries that Start with G | 0 | - | 4.97 | 1,505,871 |
| Countries that Start with M | 0 | - | 4.97 | 1,383,739 |
| Countries that Start with E | 0 | - | 4.95 | 1,379,597 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,668 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,919 |
| Countries that Start with I | 0 | - | 4.92 | 1,290,215 |
| Countries that Start with P | 0 | - | 4.94 | 1,218,011 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,978 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,246 |
| Countries that Start with N | 0 | - | 4.93 | 1,119,609 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,248,429 |
| Countries that Start with L | 0 | - | 4.98 | 1,092,562 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 908,043 |
| Random Country to Capital | 0 | - | 4.98 | 922,729 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,251 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,044 |
| Asia Map Quiz | 0 | - | 4.99 | 919,555 |
| Countries that Start with U | 0 | - | 4.97 | 905,641 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,095 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,025,712 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,375 |
| Counties of England | 0 | - | 4.97 | 798,818 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,654 |
| Oceania Map Quiz | 0 | - | 4.98 | 650,066 |
| Top World Languages | 0 | - | 4.92 | 824,374 |
| Countries of South America | 0 | - | 5.00 | 927,476 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,683 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,697 |
| Countries that Start with K | 0 | - | 4.97 | 817,358 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,140 |
| US States with an Empty Map | 0 | - | 5.00 | 625,951 |
| Countries that Start with V | 0 | - | 4.98 | 610,139 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,839 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,384 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,792 |
| Countries that Start with D | 0 | - | 4.96 | 711,722 |
| Countries That Border Russia | 0 | - | 4.98 | 462,802 |
| One Border Countries | 0 | - | 4.98 | 469,919 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,380 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,509 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,331 |
| Countries with Four Letters | 0 | - | 4.99 | 423,326 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,115 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,536 |
| Countries Bordering France | 0 | - | 4.83 | 403,526 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,998 |
| Northernmost Countries | 0 | - | 4.99 | 361,998 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,019 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,528 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,657 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,791 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,142 |
| Landlocked Countries | 0 | - | 4.99 | 422,068 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,010 |
| World Map without 12 Countries | 0 | - | 4.97 | 344,992 |
| Australia Map Quiz | 0 | - | 4.95 | 345,123 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,760 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,728 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,547 |
| Countries that Start with H | 0 | - | 4.96 | 606,214 |
| Countries that Start with J | 0 | - | 4.98 | 603,821 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,122 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,933 |
| "Land" Countries | 0 | - | 4.98 | 337,362 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,294 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 291,414 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,615 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,438 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,091 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,110 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,212 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,676 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,567 |
| Countries with Z | 0 | - | 4.98 | 291,455 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,393 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,206 |
| Flags of North and South America | 0 | - | 4.99 | 374,259 |
| EU Countries Quiz | 0 | - | 4.99 | 275,542 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,994 |
| Countries that Border China | 0 | - | 4.96 | 263,540 |
| French-Speaking Countries | 0 | - | 4.85 | 270,866 |
| Countries with Five Letters | 0 | - | 4.96 | 282,484 |
| United States Cities Map Quiz | 0 | - | 4.96 | 214,465 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,329 |
| Every Country Shape | 0 | - | 5.00 | 467,417 |
| Europe Capital to Country | 0 | - | 4.99 | 250,862 |
| Longest International Borders | 0 | - | 4.99 | 265,210 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,473 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,967 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,635 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,820 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,276 |
| Megacities on a World Map | 0 | - | 4.98 | 255,329 |
| World Currency Quiz | 0 | - | 4.92 | 304,176 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,107 |
| NATO Countries | 0 | - | 4.98 | 281,556 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,117 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,785 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,001 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,293 |
| Official Cities in the UK | 0 | - | 4.89 | 284,496 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,496 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,131 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,347 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,364 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,235 |
| Countries with Megacities | 0 | - | 4.99 | 264,603 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,746 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,327 |
| World Capitals by Map | 0 | - | 5.00 | 287,434 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,892 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,440 |
| World's Busiest Airports | 0 | - | 4.96 | 234,920 |
| Country Chain | 0 | - | 4.96 | 217,394 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,836 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,815 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,338 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,043 |
| Independence from Whom | 0 | - | 4.99 | 212,123 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,748 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,201 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,647 |
| Countries with Six Letters | 0 | - | 4.94 | 213,553 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,910 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,395 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,020 |
| Flags of Oceania | 0 | - | 5.00 | 260,482 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,819 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,694 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,841 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,591 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,778 |
| Countries in their Native Language | 0 | - | 4.99 | 199,058 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,346 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 173,789 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,531 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,917 |
| Monarchies of the World | 0 | - | 4.94 | 169,234 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,701 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,758 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,972 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,536 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,623 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,947 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,109 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,559 |
| Countries That End in Y | 0 | - | 4.91 | 185,872 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,797 |
| Olympic Host Countries | 0 | - | 4.98 | 201,104 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,215 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,641 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,194 |
| Every European Country Shape | 0 | - | 4.96 | 202,183 |
| Countries of the Middle East | 0 | - | 4.96 | 201,668 |
| Countries by Official Language | 0 | - | 4.95 | 195,273 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,127 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,648 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,765 |
| Counties of Ireland | 0 | - | 4.92 | 196,048 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,170 |
| Countries Bordering India | 0 | - | 4.98 | 163,552 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,751 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,969 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,148 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,684 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,239 |
| European Cities by Clue | 0 | - | 4.70 | 89,094 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,253 |
| Islands by Country #2 | 0 | - | 4.80 | 77,548 |
