What is the Surname of Barbie Doll?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

Two fathers and two sons decided to go to a shop and buy some sweets upon reaching. Each of them bought 1 kg of sweet. All of them returned home after some time and found out that they had 3kg of sweets with them.

They did not eat the sweets in the way, nor threw or lose anything. Then, how can this be possible?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.

Hint: The grid reads the same across as down.

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

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?