| Island Countries | 0 | - | 4.99 | 707,951 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,419 |
| European Countries by Clue | 0 | - | 4.92 | 182,457 |
| Countries by Military Spending | 0 | - | 4.93 | 176,551 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,879 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,990,404 |
| US States Quiz | 0 | - | 5.00 | 16,724,143 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,592,211 |
| United States Map Quiz | 0 | - | 4.98 | 4,143,789 |
| World Capitals Quiz | 0 | - | 5.00 | 5,037,337 |
| Europe Map Quiz | 0 | - | 5.00 | 4,735,410 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,804,513 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,758 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,527,818 |
| Random Capital to Country | 0 | - | 4.99 | 2,579,793 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,723,779 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,024 |
| All Country Flags of the World | 0 | - | 5.00 | 3,610,314 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,089,748 |
| Countries that Start with B | 0 | - | 4.95 | 2,281,633 |
| Countries that Start with A | 0 | - | 4.97 | 2,148,899 |
| Countries of Africa | 0 | - | 5.00 | 2,511,665 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,933 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,679,114 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,093 |
| Countries that Start with C | 0 | - | 4.96 | 1,811,775 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,848 |
| Countries that Start with S | 0 | - | 4.98 | 1,745,835 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,515 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,572,988 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,345 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,086 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,384 |
| Countries that Start with E | 0 | - | 4.95 | 1,368,701 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,994 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,056 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,246 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,433 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,615 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,106 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,723 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,016 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,830 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,617 |
| Random Country to Capital | 0 | - | 4.98 | 912,627 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,895 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,126 |
| Asia Map Quiz | 0 | - | 4.99 | 908,079 |
| Countries that Start with U | 0 | - | 4.97 | 900,490 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,358 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,013,355 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,163 |
| Counties of England | 0 | - | 4.97 | 790,156 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,515 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,250 |
| Top World Languages | 0 | - | 4.92 | 814,257 |
| Countries of South America | 0 | - | 5.00 | 916,233 |
| Africa Capitals Quiz | 0 | - | 4.99 | 731,294 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,854 |
| Countries that Start with K | 0 | - | 4.97 | 810,143 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,517 |
| US States with an Empty Map | 0 | - | 5.00 | 619,575 |
| Countries that Start with V | 0 | - | 4.98 | 605,616 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,510 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,417 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,571 |
| Countries that Start with D | 0 | - | 4.96 | 702,537 |
| Countries That Border Russia | 0 | - | 4.98 | 459,474 |
| One Border Countries | 0 | - | 4.98 | 464,983 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,117 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,767 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,259 |
| Countries with Four Letters | 0 | - | 4.99 | 419,023 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,154 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,150 |
| Countries Bordering France | 0 | - | 4.83 | 400,118 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,005 |
| Northernmost Countries | 0 | - | 4.99 | 358,184 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,603 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,437 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,343 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,487 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,270 |
| Landlocked Countries | 0 | - | 4.99 | 414,465 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,601 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,644 |
| Australia Map Quiz | 0 | - | 4.94 | 342,726 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,150 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,103 |
| Majority Muslim Countries | 0 | - | 4.98 | 369,164 |
| Countries that Start with H | 0 | - | 4.96 | 598,769 |
| Countries that Start with J | 0 | - | 4.98 | 596,814 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,799 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,155 |
| "Land" Countries | 0 | - | 4.98 | 333,888 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,555 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,809 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,511 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,696 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,816 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,331 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,143 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,515 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,486 |
| Countries with Z | 0 | - | 4.98 | 288,069 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,386 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,302 |
| Flags of North and South America | 0 | - | 4.99 | 368,192 |
| EU Countries Quiz | 0 | - | 4.99 | 270,421 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,604 |
| Countries that Border China | 0 | - | 4.96 | 261,980 |
| French-Speaking Countries | 0 | - | 4.85 | 269,055 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,864 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,331 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,351 |
| Every Country Shape | 0 | - | 5.00 | 459,780 |
| Europe Capital to Country | 0 | - | 4.99 | 248,193 |
| Longest International Borders | 0 | - | 4.99 | 263,959 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,898 |
| Biggest Cities by Language | 0 | - | 4.96 | 240,227 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,004 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,879 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,987 |
| Megacities on a World Map | 0 | - | 4.98 | 251,347 |
| World Currency Quiz | 0 | - | 4.92 | 299,067 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,575 |
| NATO Countries | 0 | - | 4.98 | 276,456 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,021 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,402 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,458 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,655 |
| Official Cities in the UK | 0 | - | 4.89 | 280,972 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,339 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,333 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,577 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,573 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,633 |
| Countries with Megacities | 0 | - | 4.99 | 247,651 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,985 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,179 |
| World Capitals by Map | 0 | - | 5.00 | 283,838 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,029 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,862 |
| World's Busiest Airports | 0 | - | 4.94 | 210,819 |
| Country Chain | 0 | - | 4.96 | 215,905 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,601 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,303 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,787 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,128 |
| Independence from Whom | 0 | - | 4.99 | 209,920 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,658 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,768 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,707 |
| Countries with Six Letters | 0 | - | 4.93 | 210,540 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,696 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,563 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,669 |
| Flags of Oceania | 0 | - | 5.00 | 255,780 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,698 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,202 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,060 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,473 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,706 |
| Countries in their Native Language | 0 | - | 4.99 | 196,811 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,476 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,534 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,491 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,504 |
| Monarchies of the World | 0 | - | 4.94 | 166,849 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,658 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 190,956 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,560 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,170 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,516 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,141 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,048 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,294 |
| Countries That End in Y | 0 | - | 4.90 | 185,251 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,450 |
| Olympic Host Countries | 0 | - | 4.98 | 199,049 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,039 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,994 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,249 |
| Every European Country Shape | 0 | - | 4.96 | 200,394 |
| Countries of the Middle East | 0 | - | 4.96 | 199,194 |
| Countries by Official Language | 0 | - | 4.95 | 192,955 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,305 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,459 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,828 |
| Counties of Ireland | 0 | - | 4.92 | 193,326 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,570 |
| Countries Bordering India | 0 | - | 4.98 | 162,666 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,726 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,543 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,772 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,703 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,472 |
| European Cities by Clue | 0 | - | 4.70 | 88,848 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,985 |
| Islands by Country #2 | 0 | - | 4.80 | 77,053 |
