Riddle

I'm a god, a planet, and measurer of heat. Who am I?

Choose an answer

A.Jupiter
B.Apollo
C.Neptune
D.Mercury
Hint: It's a word with 7 letters, starting with "M".

Answer

Mercury

Why this is the answer

Mercury is a Roman god, the closest planet to the sun, and the liquid metal once used inside old-fashioned thermometers.

This riddle is filed under "What Am I?" Riddles and rated Medium.