What Do You Do At A Green Light

Riddle: What does S-H-O-P spell? What does P-R-O-P spell? What does C-R-O-P spell? What does D-R-O-P spell? What do you do at a green light?

Answer: Go.

Source: https://www.riddles.com/3012

What does S-H-O-P spell? What does P-R-O-P spell? What does C-R-O-P spell? What does D-R-O-P spell? What do you do at a green light? — What do you do at a green light by Sara Hayes v1.

Riddle: What does S-H-O-P spell? What does P-R-O-P spell? What does C-R-O-P spell? What does D-R-O-P spell? What do you do at a green light? Answer: Go. — by Sara Hayes v2.