Answer:
I am a protector of the scoreboard.
I smell like blue paint pours like green paint and I look like a red truck.
Who makes it, has no need of it. Who buys it, has no use for it. Who uses it, can't see it. What is it?
I belong to you but others use me more often than you do
By myself, I'm practically nothing. Worthless as a leader, but when I follow a group, their strength increases tenfold. What am I?
A word of five letters, Upside down is the same, A shark does this, But itβs not to blame. What is the word?