I am a keeper when I have a sibling,
I am a friend to a decision maker,
I am annoying at work,
I am scary in the forest.
Who am I?
HINT:
Me and my sibling are 75% same
HINT 2:
I like boxes
HINT 3:
I am popular on Wall Street
HINT 4:
I can be found in a travel document
HINT 5:
I bite
HINT 6:
In Russian, they call me 'little bird'
HINT 7:
I can be found in all kinds of phallic objects
HINT 8:
I am a comics superhero
HINT 9:
BOOM
HINT 10:
Check
FINAL HINT:
Yes