With the help clues provided in the image, can you find the 5 digit key?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

You’re out on the water and see a boat filled with people. You look away for a second and look back again, but this time you don’t see a single person on the boat. Why? Hint: The boat did not sink.

What can jump higher than a building?

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

Hint: The grid reads the same across as down.

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

Why are televisions attracted to people?

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