When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

How many letters are in the alphabet?

What month of the year has 28 days?

Can you write down eight eights so that they add up to one thousand?

What have one eye but still cannot see?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

I am the fastest animal but cannot climb the tree. What am I?

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

If eleven plus two equals one, what does nine plus five equal?