| Island Countries | 0 | - | 4.99 | 712,991 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,858 |
| European Countries by Clue | 0 | - | 4.92 | 184,289 |
| Countries by Military Spending | 0 | - | 4.93 | 179,171 |
| Countries by Three Words #2 | 0 | - | 4.97 | 205,133 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,964,310 |
| US States Quiz | 0 | - | 5.00 | 17,019,527 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,659,319 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,322 |
| World Capitals Quiz | 0 | - | 5.00 | 5,113,302 |
| Europe Map Quiz | 0 | - | 5.00 | 4,792,682 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,852,964 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,396,880 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,679 |
| Random Capital to Country | 0 | - | 4.99 | 2,603,994 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,811,923 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,573 |
| All Country Flags of the World | 0 | - | 5.00 | 3,723,980 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,128,000 |
| Countries that Start with B | 0 | - | 4.95 | 2,308,841 |
| Countries that Start with A | 0 | - | 4.98 | 2,178,231 |
| Countries of Africa | 0 | - | 5.00 | 2,564,257 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,301 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,351 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,241 |
| Countries that Start with C | 0 | - | 4.96 | 1,833,313 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,949 |
| Countries that Start with S | 0 | - | 4.98 | 1,764,749 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,942 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,112 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,892,807 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,124 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,536 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,561 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,023 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,431 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,732 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,236 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,091 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,176 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,060 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,037 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,001 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 910,207 |
| Random Country to Capital | 0 | - | 4.98 | 929,898 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,823 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,005 |
| Asia Map Quiz | 0 | - | 4.99 | 926,583 |
| Countries that Start with U | 0 | - | 4.97 | 909,175 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,383 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,112 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,094 |
| Counties of England | 0 | - | 4.97 | 804,089 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,274 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,208 |
| Top World Languages | 0 | - | 4.92 | 831,173 |
| Countries of South America | 0 | - | 5.00 | 934,179 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,992 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,910 |
| Countries that Start with K | 0 | - | 4.97 | 821,675 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,785 |
| US States with an Empty Map | 0 | - | 5.00 | 629,509 |
| Countries that Start with V | 0 | - | 4.98 | 612,516 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,876 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,390 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,767 |
| Countries that Start with D | 0 | - | 4.96 | 717,708 |
| Countries That Border Russia | 0 | - | 4.98 | 464,872 |
| One Border Countries | 0 | - | 4.98 | 472,548 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,810 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,567 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,333 |
| Countries with Four Letters | 0 | - | 4.99 | 426,409 |
| Countries with the Most Borders | 0 | - | 4.97 | 391,008 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,052 |
| Countries Bordering France | 0 | - | 4.83 | 405,301 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,948 |
| Northernmost Countries | 0 | - | 4.99 | 364,570 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,548 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,028 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,192 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,871 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,252 |
| Landlocked Countries | 0 | - | 4.99 | 427,195 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,354 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,436 |
| Australia Map Quiz | 0 | - | 4.95 | 346,459 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,486 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,121 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,358 |
| Countries that Start with H | 0 | - | 4.96 | 610,471 |
| Countries that Start with J | 0 | - | 4.98 | 607,852 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,391 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,299 |
| "Land" Countries | 0 | - | 4.98 | 338,974 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,185 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,433 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,006 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,665 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,271 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,946 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,113 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,584 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,519 |
| Countries with Z | 0 | - | 4.98 | 292,979 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,926 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,506 |
| Flags of North and South America | 0 | - | 4.99 | 378,035 |
| EU Countries Quiz | 0 | - | 4.99 | 278,844 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,621 |
| Countries that Border China | 0 | - | 4.96 | 264,501 |
| French-Speaking Countries | 0 | - | 4.85 | 271,868 |
| Countries with Five Letters | 0 | - | 4.96 | 284,618 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,310 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,875 |
| Every Country Shape | 0 | - | 5.00 | 472,395 |
| Europe Capital to Country | 0 | - | 4.99 | 252,547 |
| Longest International Borders | 0 | - | 4.99 | 265,992 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,644 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,842 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,562 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,850 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,322 |
| Megacities on a World Map | 0 | - | 4.98 | 257,420 |
| World Currency Quiz | 0 | - | 4.92 | 307,493 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,502 |
| NATO Countries | 0 | - | 4.98 | 283,951 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,718 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,297 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 227,040 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,597 |
| Official Cities in the UK | 0 | - | 4.89 | 286,828 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,760 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,703 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,351 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,406 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,020 |
| Countries with Megacities | 0 | - | 4.99 | 267,804 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,865 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,897 |
| World Capitals by Map | 0 | - | 5.00 | 289,922 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,440 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,185 |
| World's Busiest Airports | 0 | - | 4.96 | 237,930 |
| Country Chain | 0 | - | 4.96 | 218,649 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,207 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,246 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,129 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,864 |
| Independence from Whom | 0 | - | 4.99 | 213,393 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,650 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,013 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,154 |
| Countries with Six Letters | 0 | - | 4.94 | 214,942 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,358 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,795 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,390 |
| Flags of Oceania | 0 | - | 5.00 | 263,404 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,070 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,527 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,304 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,628 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,565 |
| Countries in their Native Language | 0 | - | 4.99 | 199,948 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,621 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,922 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,045 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,223 |
| Monarchies of the World | 0 | - | 4.94 | 170,528 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,659 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,193 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,808 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,117 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,927 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,313 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,161 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,623 |
| Countries That End in Y | 0 | - | 4.91 | 186,172 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,950 |
| Olympic Host Countries | 0 | - | 4.98 | 202,184 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,913 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,335 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,796 |
| Every European Country Shape | 0 | - | 4.96 | 203,236 |
| Countries of the Middle East | 0 | - | 4.96 | 203,233 |
| Countries by Official Language | 0 | - | 4.95 | 196,206 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,939 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,301 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,198 |
| Counties of Ireland | 0 | - | 4.92 | 197,637 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,890 |
| Countries Bordering India | 0 | - | 4.98 | 163,878 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,432 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,216 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,461 |
| Countries with the Most Forest | 0 | - | 4.88 | 148,298 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,801 |
| European Cities by Clue | 0 | - | 4.70 | 89,211 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,451 |
| Islands by Country #2 | 0 | - | 4.80 | 77,949 |
