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?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Why 1729 is a magic number? Answer Logically.

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?

Sachin bought a car with a strange 5 digit numbered plate.The water image of the number is 78633 more than my car number. All the digits of car number are distinct.

What is the original number on number plate?

Find the last number in the series below:

voN luJ yaM raM ---

What occurs twice in a week, once in a year but never in a day?