Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

What is the difference between a jeweller and a jailer?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

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

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

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Can you find out which number multiplied by itself will give the output as 12345678987654321?