John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

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?

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

Take away the whole and some still remain. What is it?

What am I?

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?

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?