Solve below rebus puzzle?

What is the word or phrase?

Count the number of balls in picture below:

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

How many times can you subtract the number 5 from 25?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Can you solve the below tricky visual equation?

I have branches, but no fruit, trunk or leaves. What am I?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?