Find the number of squares in the below picture

Can you identify the hidden rebus in the image below?

Here is what you have to do. You have to throw a ball as hard as you can but it must return back to you even if it does not bounce at anything. Also, you have nothing attached to the ball. There is no one on the other end to catch that ball and throw it back at you.

How will you do it?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

A few friends are enjoying their sea voyage in a boat full of apples. On the way, they felt hungry and thus decided to eat the apples. Together, they ate two dozen of apples. When they have eaten the apples, will there be any change in the water level?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

Solve below rebus puzzle?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Jack was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?