Riddle

When should you charge your electric toothbrush?

Choose an answer

A.Every morning
B.Once a week
C.Before bedtime
D.When you can't pay cash.
Hint: It's a 5-word phrase with 18 letters, starting with "W".

Answer

When you can't pay cash.

Why this is the answer

The pun switches 'charge' from meaning recharge a battery to meaning charge a purchase to a credit account.

This riddle is filed under Dirty, Family Riddles and rated Medium.