Answer:
I always follow my brother but you cannot see me, only him. You cannot hear him but you can hear me. What are we?
I have one, you have one. If you remove the first letter, a bit remains. If you remove the second, bit still remains. If you remove the third, it still remains.
I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat. And your heart grow cold. I visit the weak, but seldom the bold.
I tremble at each breath of air, and yet can heaviest burdens bear.
What word starts with 'E', ends with 'E', but only has one letter? It is not the letter 'E'.
I am a animal that is cute but dangerous, what am I?