John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

The answer I give is yes, but what I mean is no. What was the question?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

If 21x = 79x, what is the value of x?

What does this rebus means ?

PROG WORKRESS

At a Society election for president, precisely 963 votes were cast.
There is a total of 4 candidates that participate in the election.

The winning candidate exceeds the opponents by 53, 79 and 105 votes.

How many votes do each candidate gets?

How many Watermelons are there in the below picture?

The below mentioned letters have been placed in a order using a logic.

DEAD, BALL, FEAR, SHOP

Can you find the logic?

There's a day, that comes around once a year.
To celebrate the man, you hold dear.
He gave you life, love and will pick you up if you fall.
When it comes to guys like him, He's the best of all.
Who is he?

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