| Island Countries | 0 | - | 4.99 | 711,091 |
| Countries by Three Words #1 | 0 | - | 4.95 | 265,892 |
| European Countries by Clue | 0 | - | 4.92 | 183,818 |
| Countries by Military Spending | 0 | - | 4.93 | 178,368 |
| Countries by Three Words #2 | 0 | - | 4.97 | 203,226 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,592,598 |
| US States Quiz | 0 | - | 5.00 | 16,917,580 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,632,763 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,540 |
| World Capitals Quiz | 0 | - | 5.00 | 5,083,877 |
| Europe Map Quiz | 0 | - | 5.00 | 4,770,987 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,835,207 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,383,970 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,540,037 |
| Random Capital to Country | 0 | - | 4.99 | 2,594,643 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,779,702 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,704 |
| All Country Flags of the World | 0 | - | 5.00 | 3,680,009 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,105,474 |
| Countries that Start with B | 0 | - | 4.95 | 2,298,042 |
| Countries that Start with A | 0 | - | 4.98 | 2,166,645 |
| Countries of Africa | 0 | - | 5.00 | 2,544,924 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,718 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,692,836 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,727 |
| Countries that Start with C | 0 | - | 4.96 | 1,824,994 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,384,834 |
| Countries that Start with S | 0 | - | 4.98 | 1,757,523 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,377 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,590,791 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,877,745 |
| Countries that Start with G | 0 | - | 4.97 | 1,505,908 |
| Countries that Start with M | 0 | - | 4.97 | 1,383,767 |
| Countries that Start with E | 0 | - | 4.95 | 1,379,645 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,717 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,927 |
| Countries that Start with I | 0 | - | 4.92 | 1,290,247 |
| Countries that Start with P | 0 | - | 4.94 | 1,218,042 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,037 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,283 |
| Countries that Start with N | 0 | - | 4.93 | 1,119,642 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,248,515 |
| Countries that Start with L | 0 | - | 4.98 | 1,092,590 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 908,055 |
| Random Country to Capital | 0 | - | 4.98 | 922,765 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,266 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,092 |
| Asia Map Quiz | 0 | - | 4.99 | 919,626 |
| Countries that Start with U | 0 | - | 4.97 | 905,652 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,187 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,025,812 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,392 |
| Counties of England | 0 | - | 4.97 | 798,845 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,695 |
| Oceania Map Quiz | 0 | - | 4.98 | 651,088 |
| Top World Languages | 0 | - | 4.92 | 824,420 |
| Countries of South America | 0 | - | 5.00 | 927,541 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,712 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,744 |
| Countries that Start with K | 0 | - | 4.97 | 817,386 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,154 |
| US States with an Empty Map | 0 | - | 5.00 | 625,983 |
| Countries that Start with V | 0 | - | 4.98 | 610,144 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,853 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,390 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,839 |
| Countries that Start with D | 0 | - | 4.96 | 711,756 |
| Countries That Border Russia | 0 | - | 4.98 | 462,817 |
| One Border Countries | 0 | - | 4.98 | 469,932 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,387 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,541 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,370 |
| Countries with Four Letters | 0 | - | 4.99 | 423,334 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,125 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,547 |
| Countries Bordering France | 0 | - | 4.83 | 403,542 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,009 |
| Northernmost Countries | 0 | - | 4.99 | 362,014 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,031 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,542 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,673 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,800 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,150 |
| Landlocked Countries | 0 | - | 4.99 | 422,101 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,026 |
| World Map without 12 Countries | 0 | - | 4.97 | 345,002 |
| Australia Map Quiz | 0 | - | 4.95 | 345,140 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,775 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,747 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,567 |
| Countries that Start with H | 0 | - | 4.96 | 606,235 |
| Countries that Start with J | 0 | - | 4.98 | 603,844 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,135 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,942 |
| "Land" Countries | 0 | - | 4.98 | 337,371 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,297 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 291,419 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,643 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,442 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,102 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,151 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,219 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,681 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,586 |
| Countries with Z | 0 | - | 4.98 | 291,470 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,404 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,214 |
| Flags of North and South America | 0 | - | 4.99 | 374,287 |
| EU Countries Quiz | 0 | - | 4.99 | 275,572 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,008 |
| Countries that Border China | 0 | - | 4.96 | 263,548 |
| French-Speaking Countries | 0 | - | 4.85 | 270,875 |
| Countries with Five Letters | 0 | - | 4.96 | 282,498 |
| United States Cities Map Quiz | 0 | - | 4.96 | 214,470 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,354 |
| Every Country Shape | 0 | - | 5.00 | 467,452 |
| Europe Capital to Country | 0 | - | 4.99 | 250,873 |
| Longest International Borders | 0 | - | 4.99 | 265,214 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,501 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,975 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,662 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,827 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,285 |
| Megacities on a World Map | 0 | - | 4.98 | 255,345 |
| World Currency Quiz | 0 | - | 4.92 | 304,197 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,114 |
| NATO Countries | 0 | - | 4.98 | 281,566 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,123 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,795 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,009 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,298 |
| Official Cities in the UK | 0 | - | 4.89 | 284,506 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,498 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,136 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,356 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,369 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,238 |
| Countries with Megacities | 0 | - | 4.99 | 264,621 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,753 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,333 |
| World Capitals by Map | 0 | - | 5.00 | 287,450 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,895 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,444 |
| World's Busiest Airports | 0 | - | 4.96 | 234,946 |
| Country Chain | 0 | - | 4.96 | 217,401 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,842 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,852 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,344 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,050 |
| Independence from Whom | 0 | - | 4.99 | 212,138 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,755 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,208 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,651 |
| Countries with Six Letters | 0 | - | 4.94 | 213,565 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,913 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,396 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,026 |
| Flags of Oceania | 0 | - | 5.00 | 260,507 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,827 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,708 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,848 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,596 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,795 |
| Countries in their Native Language | 0 | - | 4.99 | 199,065 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,349 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 173,798 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,535 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,925 |
| Monarchies of the World | 0 | - | 4.94 | 169,240 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,709 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,768 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,972 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,541 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,625 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,950 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,115 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,578 |
| Countries That End in Y | 0 | - | 4.91 | 185,873 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,805 |
| Olympic Host Countries | 0 | - | 4.98 | 201,113 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,229 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,643 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,199 |
| Every European Country Shape | 0 | - | 4.96 | 202,199 |
| Countries of the Middle East | 0 | - | 4.96 | 201,682 |
| Countries by Official Language | 0 | - | 4.95 | 195,279 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,132 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,655 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,771 |
| Counties of Ireland | 0 | - | 4.92 | 196,051 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,175 |
| Countries Bordering India | 0 | - | 4.98 | 163,559 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,757 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,969 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,154 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,689 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,242 |
| European Cities by Clue | 0 | - | 4.70 | 89,094 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,254 |
| Islands by Country #2 | 0 | - | 4.80 | 77,550 |
