A Shorter Word
What word becomes shorter when you add letters to it?
Short. Adding ‘er’ to short gives you shorter.
Reordered Mistake
What reordered word is a mistake?
Errored, which is an anagram of reorder.
Made of Ten But Two We Make
Made of ten but two we make,
When assembled others quake,
Five apart and we are weak,
Five together havoc wreak.
What are we?
A fist.
I Always Send You In The Right Direction
I always send you in the right direction,
I’m arrayed in black and white,
Ignore me and lose my protection,
No more than two words are in sight.
What am I?

A one way street sign. It tells you the correct way to go, is black and white (in the United States), going the wrong way can get you a citation and the sign only has two words on it.
I Prevent Escape
I prevent escape or intrusion,
Yet I also preserve and protect,
Thieves use me to get money,
From me they can often collect.
I’m the practice of a sport, but not on the lawn,
Your friends may get upset when I’m sat upon.
What am I?
Fence. Fences keep ne’er-do-wells out and protect people inside. A fence is a person who buys stolen goods to later resell them for a profit. Those who fence practice the sport of fencing. En garde! And people don’t like it when you sit on the fence in a heated debate. (Believe me, I speak from experience)
I Come in the Form of a Question
I come in the form of a question. If you don’t know the answers, you will think a lot, but when you know or you are being told the answer it sounds simple that you will think everybody can easily know.
A riddle or brain teaser.