Riddle

What is never used unless it's in a tight place?

Choose an answer

A.A wedge
B.A stopper
C.A shim
D.A cork
Hint: It's a 2-word phrase with 5 letters, starting with "A".

Answer

A cork

Why this is the answer

A cork only serves its purpose by being squeezed into a tight space, like the neck of a bottle.

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