Answer:
You could do this to a motion, see it on a watch, or place this in a race.
When is 1500 plus 20 and 1600 minus 40 the same thing?
I am the red tongue of the earth, that buries cities.
I know a word of letters three, add two and less there will be.
Whipping one of these out in the wrong setting is said to be terrible luck.
I am free the first time and second time but the third time is going to cost you money.