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The person who waves the flags at a Nascar race is called the Nascar flagman.
"flag-bearer"
They are called the AR's.
The person who carries the flag is the flag bearer, though there are probably other terms as well.
vexillologistA person that is an expert in flag design & history is called a "vexillologist."Read more: http://wiki.answers.com/What_is_a_vexillologist#ixzz1GK8jEY1u
"A mailbox" fits. I don't know if it's what the person who invented the riddle had in mind or not.
American flag
An American Flag.
Its called a Lakitu. It throws spikes in Mario games to kill Mario. In this game its just the race manager.
Both a euglena's flagellum and a flag are used for waving or movement. The flagellum on a euglena helps it to swim and navigate through its environment, much like how a flag waves in the wind for communication or decoration.
The California flag is called the bear flag.
a flag??