Riddle

What goes round and round the wood but never goes into the wood?

Choose an answer

A.The wind
B.A woodpecker
C.Sap
D.Bark
Hint: It's a word with 4 letters, starting with "B".

Answer

Bark

Why this is the answer

Tree bark wraps entirely around the wood of the trunk without ever penetrating into the wood itself.

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