Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

You are a prisoner sentenced to death. The Emperor offers you a chance to live by playing a simple game. He gives you 50 black marbles, 50 white marbles, and 2 empty bowls. He then says, 'Divide these 100 marbles into these 2 bowls. You can divide them any way you like as long as you use all the marbles. Then I will blindfold you and mix the bowls around. You then can choose one bowl and remove ONE marble. If the marble is WHITE you will live, but if the marble is BLACK... you will die.'

How do you divide the marbles up so that you have the greatest probability of choosing a WHITE marble?

Our product and our sum always give the same answer. Who are we?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

If an electric train is travelling south, then which way is the smoke going?

There is a bag which have 21 blue balls and 23 red balls. You also have 22 red balls outside the bag. Randomly remove two balls from the bag. * If they are of different colors, put the blue one back in the bag. * If they are the same colour, take them out and put a red ball back in the bag. Repeat this until only one ball remains in the bag. What is the color of the sole ball left in the bag ?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

I have an eye but still cannot see.

Who am I?