What does an expanation mark mean?

How do you convert kilograms per hour to MMSCFD? How do you fold the wing mirrors in on a Mercedes C200? Who is the owner of silk bank? Are you sleep when you get stitches removed? Does the carpenter boss tell you where to build the houses? How is sugarcane planted? How can you take off permanent paint? How do you enter paid survey earnings on form 1040 for income tax purposes? Name something found in Santa's workshop? Who is James Andrade? How do you turn speed limiter off on foden alpha? How do you pronounce Aida - as in the fabric? How do you look hot and sporty at the same time? Why do i wake up while sleeping and feel like i cant breathe? Is rakuwa phiten real? How do you learn your height in cm? How can I make homemade spirit gum for crafting and special effects purposes? How do you get rid of black eyes? Can you use double sided tape to secure a mattress? How do you make something look old?