what's the probability of getting a king or a queen from a pack of 52 cards?

The dirtier I get, the whiter I look. Who am I?

What can go up a chimney down, but can’t go down a chimney up?

During an experiment, a guy throws a bouncy ball from a 100 feet tall building. The ball has a specific characteristic. Every time it hits the ground, it bounces up halfway.

How many bounces do you think the ball will make before it comes to a stop ?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

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?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

What does the rebus below mean?

TEN BADTION

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

What does the below rebus puzzle mean?