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

If eleven plus two equals one, what does nine plus five equal?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

Find the next number in the series.
1 10 24 43 67 ?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

There is something which you can be arrested for attempting but not for successfully completing.

I add 5 to 9 and get 2. The answer is correct, so what am I?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

Can you solve below mathematical equation?

2^1234 - 2^1233