What goes up but never comes down?

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?

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

Can you make four (4) nines (9) equal 100?

Okay before we begin with the puzzle, do keep in mind that you have to answer it quickly.

You are participating in a car race. Seeking the perfect moment, you overtake the second person in the race. What positions are you in now?

I have branches, but no fruit, trunk or leaves. What am I?

Can you count the number of children in the picture below

I can write cow in 13 letters.

Can You?

Find the last number in the series below:

voN luJ yaM raM ---

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?