| Island Countries | 0 | - | 4.99 | 707,504 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,143 |
| European Countries by Clue | 0 | - | 4.92 | 182,343 |
| Countries by Military Spending | 0 | - | 4.93 | 176,355 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,380 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,896,421 |
| US States Quiz | 0 | - | 5.00 | 16,693,644 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,586,418 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,179 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,620 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,046 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,799,868 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,524 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,867 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,512 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,098 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,814 |
| All Country Flags of the World | 0 | - | 5.00 | 3,599,547 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,493 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,252 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,127 |
| Countries of Africa | 0 | - | 5.00 | 2,506,643 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,439 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,205 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,914 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,819 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,613 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,102 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,535 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,376 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,299 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,349 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,993 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,115 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,428 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,705 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,957 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,267 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,092 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,175 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,436 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,859 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,567 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,007 |
| Random Country to Capital | 0 | - | 4.98 | 911,329 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,986 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,185 |
| Asia Map Quiz | 0 | - | 4.99 | 906,712 |
| Countries that Start with U | 0 | - | 4.97 | 899,753 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,840 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,275 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,499 |
| Counties of England | 0 | - | 4.97 | 788,919 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,780 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,062 |
| Top World Languages | 0 | - | 4.92 | 812,760 |
| Countries of South America | 0 | - | 5.00 | 914,229 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,956 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,577 |
| Countries that Start with K | 0 | - | 4.97 | 809,146 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,059 |
| US States with an Empty Map | 0 | - | 5.00 | 618,587 |
| Countries that Start with V | 0 | - | 4.98 | 604,922 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,641 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,123 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,235 |
| Countries that Start with D | 0 | - | 4.96 | 701,196 |
| Countries That Border Russia | 0 | - | 4.98 | 458,807 |
| One Border Countries | 0 | - | 4.98 | 464,165 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,705 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,089 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,658 |
| Countries with Four Letters | 0 | - | 4.99 | 418,386 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,422 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,668 |
| Countries Bordering France | 0 | - | 4.83 | 398,594 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,491 |
| Northernmost Countries | 0 | - | 4.99 | 357,565 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,227 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,027 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,940 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,208 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,031 |
| Landlocked Countries | 0 | - | 4.99 | 413,333 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,072 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,273 |
| Australia Map Quiz | 0 | - | 4.94 | 342,395 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,700 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,491 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,360 |
| Countries that Start with H | 0 | - | 4.96 | 597,654 |
| Countries that Start with J | 0 | - | 4.98 | 595,727 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,256 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,750 |
| "Land" Countries | 0 | - | 4.98 | 333,565 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,339 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,665 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,734 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,237 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,428 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,998 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,745 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,172 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,985 |
| Countries with Z | 0 | - | 4.98 | 287,798 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,044 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,834 |
| Flags of North and South America | 0 | - | 4.99 | 366,804 |
| EU Countries Quiz | 0 | - | 4.99 | 269,765 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,159 |
| Countries that Border China | 0 | - | 4.96 | 261,784 |
| French-Speaking Countries | 0 | - | 4.85 | 268,729 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,611 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,190 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,795 |
| Every Country Shape | 0 | - | 5.00 | 458,633 |
| Europe Capital to Country | 0 | - | 4.99 | 247,467 |
| Longest International Borders | 0 | - | 4.99 | 263,495 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,102 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,805 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,505 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,589 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,779 |
| Megacities on a World Map | 0 | - | 4.98 | 250,830 |
| World Currency Quiz | 0 | - | 4.92 | 298,248 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,277 |
| NATO Countries | 0 | - | 4.98 | 275,538 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,869 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,045 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,151 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,382 |
| Official Cities in the UK | 0 | - | 4.89 | 280,417 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,054 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,182 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,234 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,359 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,407 |
| Countries with Megacities | 0 | - | 4.99 | 246,561 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,727 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,853 |
| World Capitals by Map | 0 | - | 5.00 | 283,092 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,902 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,334 |
| World's Busiest Airports | 0 | - | 4.94 | 210,304 |
| Country Chain | 0 | - | 4.96 | 215,665 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,332 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,650 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,578 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,874 |
| Independence from Whom | 0 | - | 4.99 | 209,611 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,721 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,606 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,542 |
| Countries with Six Letters | 0 | - | 4.93 | 210,290 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,559 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,457 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,328 |
| Flags of Oceania | 0 | - | 5.00 | 255,011 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,401 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,892 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,939 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,323 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,014 |
| Countries in their Native Language | 0 | - | 4.99 | 196,569 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,261 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,250 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,356 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,317 |
| Monarchies of the World | 0 | - | 4.94 | 166,537 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,503 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,696 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,360 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,970 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,125 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,065 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,870 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,763 |
| Countries That End in Y | 0 | - | 4.90 | 185,184 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,195 |
| Olympic Host Countries | 0 | - | 4.98 | 198,842 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,653 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,885 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,074 |
| Every European Country Shape | 0 | - | 4.96 | 200,083 |
| Countries of the Middle East | 0 | - | 4.96 | 198,839 |
| Countries by Official Language | 0 | - | 4.95 | 192,710 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,174 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,042 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,700 |
| Counties of Ireland | 0 | - | 4.92 | 192,975 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,400 |
| Countries Bordering India | 0 | - | 4.98 | 162,576 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,631 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,486 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,614 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,608 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,408 |
| European Cities by Clue | 0 | - | 4.70 | 88,793 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,941 |
| Islands by Country #2 | 0 | - | 4.80 | 76,973 |
