Answer:
I'm light as a feather, yet the strongest man can't hold me for more than 5 minutes.
What has a neck and no head, two arms but no hands?
Autumn leaves and bad bowlers wreak havoc on this
What is never used unless it's in a tight place?
When the day after tomorrow is yesterday, today will be as far from Wednesday as today was from Wednesday when the day before yesterday was tomorrow. What is the day after this day?
I have two bodies joined together as one. When standing still I run and run.