I’m tall when I’m young, and I’m short when I’m old. What am I?

Using Only Five 5's and any mathematical operator make sum as 37

What number comes next in the series?

5 15 5 18 5 24 14 20 _

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.....)

Six people park their car in an underground parking of a store. The store has six floors in all. Each one of them goes to a different floor. Simon stays in the lift for the longest. Sia gets out before Peter but after Tracy. The first one to get out is Harold. Debra leaves after Tracy who gets out on the third floor.

Can you find out who leaves the lift on which floor?

Why do you find that most of the buildings are deprived of the 13th floor?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

A man dies of old age on his 25 birthday. How is this possible?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

Can you make the number 24 by utilizing the numbers 1, 3, 4 and 6? You must use one number only one time and you can use mathematical operation symbols anytime anywhere.