Riddle

Travel a mile and I will change, travel a million and I will end as I started. What am I?

Choose an answer

A.Speedometer
B.Thermometer
C.Compass
D.Odometer
Hint: It's a word with 8 letters, starting with "O".

Answer

Odometer

Why this is the answer

An odometer's reading changes after one mile, but after a million miles it commonly rolls back over to all zeros, ending as it started.

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