[交流] Funny English quiz in everyday（NO.27）

Previously
Q: David was out for a walk when it started to rain. He did not have an umbrella and his clothes were soaked, yet not a single hair on his head got wet.Why?

A: He was a bald.

Today’s Question
How long is a shoe usually?

We will hold this column everyday, the one who write the right answer first can earned 1 BB.
If u missed it this time, please come on and come here early, then use your smart head to find the answer.
I will give u the right answer in the column tomorrow.
So good luck to u!