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?

How many times do a clock's hands overlap in a day ?

What does this Rebus Picture mean?

How many triangles are there on the puzzle below?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

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?

Can you name an animal whose killing cannot be performed without spilling your own blood?