Sources

Questions and scoring are owned by this site. Daily puzzles are frozen when created, so an updated dataset cannot change an answer during a game. Values are snapshots; units, reference years and source links identify what is being compared.

World Bank data is attributed under CC BY 4.0 and the World Bank terms. Changes here include filtering, aliases, unit conversions and calculated great-circle distances. PubChem and JPL numeric tables are credited to their publishers. PokéAPI data is redistributed with its copyright and redistribution notice. Pokémon names remain Nintendo trademarks. No publisher endorses this edition.

215 entries. Land only: inland waters are excluded.
World Bank · Country land area · 2023 snapshot

215 entries. Land and inland waters together.
World Bank · Country surface area · 2023 snapshot

217 entries. The number of residents in 2023.
World Bank · Country population in 2023 · 2023 snapshot

210 entries. Land classified as forest in 2023.
World Bank · Country forest area in 2023 · 2023 snapshot

206 entries. Follow the shortest path over Earth’s surface. Choose another capital city; flight and road routes can be longer.
World Bank capital coordinates; calculated spherical great-circle distances

206 entries. Follow the shortest path over Earth’s surface. Choose another capital city; flight and road routes can be longer.
World Bank capital coordinates; calculated spherical great-circle distances

206 entries. Follow the shortest path over Earth’s surface. Choose another capital city; flight and road routes can be longer.
World Bank capital coordinates; calculated spherical great-circle distances

206 entries. Follow the shortest path over Earth’s surface. Choose another capital city; flight and road routes can be longer.
World Bank capital coordinates; calculated spherical great-circle distances

206 entries. Follow the shortest path over Earth’s surface. Choose another capital city; flight and road routes can be longer.
World Bank capital coordinates; calculated spherical great-circle distances

118 entries. A neutral atom also has this many electrons.
NIH PubChem · Periodic Table of Elements

118 entries. Use the element’s listed atomic mass.
NIH PubChem · Periodic Table of Elements

99 entries. Compare the sizes of atoms outside a chemical bond.
NIH PubChem · Periodic Table of Elements

95 entries. Higher values mean a stronger attraction for bonding electrons.
NIH PubChem · Periodic Table of Elements

102 entries. The energy needed to remove an atom’s first electron.
NIH PubChem · Periodic Table of Elements

57 entries. The energy released when a neutral atom gains an electron.
NIH PubChem · Periodic Table of Elements

103 entries. Remember: 273.15 K is 0°C.
NIH PubChem · Periodic Table of Elements

93 entries. Use kelvin rather than degrees Celsius.
NIH PubChem · Periodic Table of Elements

96 entries. Compare equal volumes: gases are light and dense metals are heavy.
NIH PubChem · Periodic Table of Elements

13 entries. Use mean radius, not equatorial radius.
NASA JPL Solar System Dynamics · Planetary Physical Parameters

8 entries. One unit represents one trillion trillion kilograms.
NASA JPL Solar System Dynamics · Planetary Physical Parameters

13 entries. Bulk density compares a world’s mass with its volume.
NASA JPL Solar System Dynamics · Planetary Physical Parameters

13 entries. One full spin relative to distant stars. Use the duration, regardless of spin direction.
NASA JPL Solar System Dynamics · Planetary Physical Parameters

13 entries. One full trip around the Sun, in years of 365.25 days.
NASA JPL Solar System Dynamics · Planetary Physical Parameters

13 entries. Use the gravitational acceleration at the equator.
NASA JPL Solar System Dynamics · Planetary Physical Parameters

13 entries. The minimum speed needed to escape a world’s gravity without further propulsion.
NASA JPL Solar System Dynamics · Planetary Physical Parameters

1,025 entries. Use the Pokémon’s height in metres.
PokéAPI contributors · pinned default-form Pokémon measurements

1,025 entries. Use the Pokémon’s weight in kilograms.
PokéAPI contributors · pinned default-form Pokémon measurements