Long Riddles and Answers

Question: Sometimes I'm high and sometimes low,
and I creep between your toes.
My orders come from the sky,
I make men fall and rise.

What am I?

Question: I get dirty in about 5 days but it takes half an hour to clean me. It takes a long time for me to be tall but I can be short in about 2 seconds what am I ?

Question: You are driving and you are hungry and thirsty.On the road you find 2 doors.1 has food and 1 has water(drinkable).:Question:What door do you open first????

Question: Having one, means having something to follow. Once you question it, it means having none. People seek it, but some do and some don't find it. What is it?

Question: A guy writes in his journal. He writes "Hey, journal, today I... 'Dinner is ready!' Is what his wife said." But the guy had no wife. How is this possible?