Answer:
I run around the city, but I never move.
It can cause deflation of tires when dropped from the rear of spy cars.
In the night a mountain, in the morning a meadow.
What grows in winter, dies in summer, and grows roots upward?
A mile from end to end, yet as close to as a friend. A precious commodity, freely given. Seen on the dead and on the living. Found on the rich, poor, short and tall, but shared among children most of all.
Lynn likes grapes but not potatoes. She likes squash but not lettuce, and she likes peas but not onions. Following the same rule, will she like pumpkins or apples?