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?

Identify the 10 differences between the two given pictures.

How many times can you subtract the number 5 from 25?

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

John was drowned by he was not wet. How?

There are two dice with empty faces in front of you and a marker. You can mark any number on each of the faces of the two dice, but you have to display all 31 days of the month using the two of them.

Which numbers will you mark on which dice so that you can easily depict all the dates of the month?

I add 5 to 9 and get 2. The answer is correct, so what am I?

Can you count the number of quadrilaterals in the picture below?