Riddle

Big as a biscuit, deep as a cup, but even a river can't fill it up. What is it?

Choose an answer

A.A sieve
B.A colander
C.A funnel
D.A strainer
Hint: It's a 2-word phrase with 9 letters, starting with "A".

Answer

A strainer

Why this is the answer

A strainer is full of holes, so no matter how much water is poured through it -- even a river's worth -- it can never actually be filled up.

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