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

Can you find the thief by just looking at the picture below?

What does this simple rebus mean?

Find the next number in the series

12, 20, 40, 72, 116, 172 ?

Why do people go to bed?

Complete the table series riddle by finding the number that can replace "??".

I start and end with 500 and carry a 5 in my heart. But I require the first letter and the first number to be complete. I am the name of a King.

Who am I ?

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

what does this picture(rebus) riddle means ?