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

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

I am white when I am dirty, and black when I am clean. What am I?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?

If six children and two dogs were under an umbrella, how come none of them got wet?

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?