Find the number of squares in the below picture

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

At a Society election for president, precisely 963 votes were cast.
There is a total of 4 candidates that participate in the election.

The winning candidate exceeds the opponents by 53, 79 and 105 votes.

How many votes do each candidate gets?

Rearrange the letters in "new door" to make one word.

What you cannot hold but it is yours?

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

What has many teeth, but cannot bite?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?