Riddle

I have a large space, no locks, but many keys and letters. What am I?

Choose an answer

A.The letter "A"
B.The letter "M"
C.The letter "P"
D.A computer keyboard
Hint: It's a 3-word phrase with 17 letters, starting with "A".

Answer

A computer keyboard

Why this is the answer

This is a lateral thinking puzzle where the solution relies on a non-obvious interpretation of the words used.

This riddle is filed under Expert Riddles for Adults and rated Hard.