This is a famous paradox which has caused a great deal of argument and disbelief from many who cannot accept the correct answer. Four balls are placed in a hat. One is white, one is blue and the other two are red. The bag is shaken and someone draws two balls from the hat. He looks at the two balls and announces that at least one of them is red. What are the chances that the other ball he has drawn out is also red?

Here is a Swiss Cross. You have to make two straight cuts in the figure so that it is divided into four congruent pieces. Also, you should be able to join these pieces into a square then. Can you accept this challenge?

Using eight eights and addition only, can you make 1000?

How many words can a pen with half refill write?

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

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

What time is it when an elephant sits on a fence?

I taste better than I can smell. Who am I?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

I shave every day, but my beard stays the same. What am I?