When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

What does this simple rebus mean?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Four children having five rocks each were playing a game in which they had to throw the rock at a particular solid area in the water. Child 1- Succeeded in throwing three rocks at a solid area but one of the rocks sunk. Child 3 - His aim was so bad that all rocks got sunk. Child 4- He was awesome and none of the rocks got sunk. Child 2 - Was the winner but was struck by a rock in the head and died. Who killed Child 2?

Find the last number in the series below:

voN luJ yaM raM ---

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?