Riddle

What turns from red to black as soon as it touches water?

Choose an answer

A.Charcoal
B.Iron
C.Ash
D.An ember
Hint: It's a 2-word phrase with 7 letters, starting with "A".

Answer

An ember

Why this is the answer

A glowing red ember instantly turns black and stops glowing the moment it's doused with water.

This riddle is filed under Hard/Difficult Riddles and rated Medium.