Riddle

What has you stop on green and go on red?

Choose an answer

A.A traffic light
B.An apple
C.A stoplight
D.A watermelon
Hint: It's a 2-word phrase with 11 letters, starting with "A".

Answer

A watermelon

Why this is the answer

A watermelon's green rind is where you 'stop' (it's inedible), while its red flesh is where you 'go' (dig in and eat) -- a counterintuitive color-based pun.

This riddle is filed under Riddles for Teens and rated Medium.