I have teeth but i don't bite. Who Am I ?

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

A mules travels the same distance daily.
I noticed that two of his legs travels 10km and the remaining two travels 12km.
Obviously two mules legs cannot be a 2km ahead of the other 2.

The mules is perfectly normal. So how come this be true ?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?

I travel all around the world but always stay in the corner. What am I?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

I always drive my customer away.

Who am I?

During which month do people sleep the least?