What does this Rebus Picture mean?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

81 x 9 = 801. What must you do to make the this equation true?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?

There is a number which when you multiply by 3 and subtract 2 from the result, then the resulting number is the reverse of the actual number.

What is the smallest number that stands true on the statement?

What number divided by 4 is the same as that number minus 4?

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?