How can you take 2 from 5 and leave 4?

Find the value of "?" in the ball picture Riddle below:

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

What does below Rebus say?

XLR8

What can go through glass without breaking it?

It is always ahead of me yet I can never see it. What is it?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

In a town, there are four houses located at different distances from each other. Following are the distances:

The third house is 60 meters apart from the first house.
The fourth house is 40 meters apart from the second house.
The third house is 10 meters nearer to the fourth house than it is to the second house.

Can you find out the distance between the fourth and the first house?

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

Our product and our sum always give the same answer. Who are we?